Thanks Mr. Pete. This was even better than what I envisioned. Using the miniature rear end was a very good idea. And you are right: learning **IS** fun!! This is the kind of thing that young folks in this country need to inspire them to be great. Technology is fascinating.
If I could give more than one thumbs up I would. That was an outstanding demonstration. Thanks for all the time you put into this video. Very much appreciated!
Dear Mr. Pete, You are a great teacher, better than thousands books. I wish you a long long life so you can help us to understand as much as possible. Thank you for all you do. I love you. Antonio ( Italy,Rome)
Just got around to this one...thanks again, Mr. Pete. Nothing I didn't already know, having grown up in the automotive world, but I enjoy every minute of your presentations. Never should you feel like you have to apologize for length, content, or your views. I imagine most of us are here because we like to spend time with you. I notice that you've gained 59 subscribers since this afternoon, after all. In an earlier comment, I mentioned how much my dad would have liked to hang out with you in your shop (as would I), but this Cushman axle demo brought back a long-forgotten memory. In the late 60s, he took me along to look at a surplus Cushman mail delivery three-wheeler. Remember when the Post Office had them, painted dark blue in those days? Seems like they had Onan engines, or perhaps OMC. Opposed twins, at any rate. Weird gearshift out the side of the steering column, or so it seemed to a second grader. This fellow must have had fifty of them parked along a fence row. I wanted to take one home so badly I could taste it! He was probably asking $50-100 for them, but we didn't get one. Oh well. We did get an insurance-totalled VW Beetle about that time, though, for $65. Yes, sixty-five dollars. Really barely damaged, we drove it home in a continuous left-hand spiral around town because of the front-end damage. Totally disassembled it in the garage, repaired everything. It was a blast for nine-year-old me. My dad drove it for a long time, I drove it to college, even drove it for a while after getting married...about 16 years in all, I guess. $4 per year on the initial investment! Great, great fun. Wish my dad hadn't sold it.
Fabulously clear & informative. My first experience was when Father broke a half shaft on my Morris Minor. We got a scrap rear axle complete with brake drums (that unlike my drums hadn't part corroded through) & replaced the lot. It ran for ages before I sold it.
An old 4x4 drivers tip for a "slip" axle for yall. When you get stuck and the tire with the least traction is the one that spins, getting you nowhere. The tip is to "add" traction to that tire by applying pressure to the brakes. By doing that often times it will allow the tire with the traction to spin and hopefully get you unstuck. Great video mrpete. When i first got into 4x4 it took me a long time to figure out why my four wheel drive was not actually four wheel drive but only two.
Mr. Pete, I can't help but wonder how my life would have been different if I was exposed to videos like this when I was in my teens and twenties. I look forward to each of your videos because I enjoy learning and you make it interesting and fun. I like that you corrected your apology for the video length. It is what it is, we don't want to skim over important details, other wise it would not be sufficient to call it "What Makes it Work". Thank you!
That was an EXCELLENT demonstration!!!!! Most vehicles I ever worked on have been front wheel drive, so seeing this was brilliant. Thanks for making this available, appreciate the time and money that must have gone into making this fine video.
Don't ever apologize for the length of your videos. You are having fun and edumatizing us plebs. When that happens, well, you want to make more videos and we want to watch more videos. Thank you Mr. Peterson!
Pete. As always you do a great job with your videos. For whatever it's worth, when I took "auto shop" in H.S. in 1949 we were taught that the gears on the 2 half "axles" were called "Side" gears. And yes, the differential gears have a counterpart in electronics as well. It is an engineering marvel. And as you say, it works automatically. Keep up the good work Pete. You are a true blessing from Jesus. May He continue to bless you with gifts from heaven. I only wish you had been my instructor when I was in school. I am sure I would have learned immeasurably more. pat
Thank you for your efforts to show us how things work, not only from a book, but in practical applications. If you have a way, I'd love to see and understand how a "torsen" differential works. Thank you.
Great video....length is not an issue. Your cut aways are always great. The best cut aways I have ever seen are at the EAA museum in Oshkosh of large complex aircraft radial engines. The cut aways are absolute works of art and some defy understanding how they were accomplished because they are so complex.
really wish i'd had a teacher like you when i was in school....think i would have enjoyed my metal shop class a lot more....(and probably learned a whole lot more!!!)
Even if you already know how a differential works, this is a fun video, and watching it work, LIVE, from the inside out just makes you appreciate the clever design! Thanks Mr Pete!
Thanks for another fantastic video! Despite driving all kinds of cars/trucks, farm equipment etc; I was obviously aware of the differential redirecting the force 90°, but hadn't fully understood how the wheel without traction would spin and at twice the rate. I look forward to sharing this with my two young sons. Excellent explanation and your attention to detail is appreciated.
My old man taught me most of this, showed me some while we worked under my car. But to see it in action, on a table, in the light? This video makes things so much clearer! Thanks Pete! PS - Now try and find something that small with limited-slip for the next video!
Great job Lyle, Thanks for the experience, time , money and detailed information that you put in all the videos. There is one thing that baffles me and it is why there always are about 15 people that dislike your work... I guess jealousy or just foolishness is the motivation.
The 15 or so people are Cushman fans, who freaked out when he cut the top off. These are hard to find rear ends. I have a Cushman myself, and when he said he was going to cut it, I yelled "NO " !!!
Merry Christmas Tubalcain! I really enjoy your videos and wanted to thank you for your dedication to teaching (and willingness to pass on your knowledge and experience). Hope you and your family have a happy New Year as well.
Great Video! Mr.Peterson, I hope you can continue to deliver your knowledge to the masses for a long time. you have an impeccable way to explain many things that few understand how they work. Even more so that you have the talent to produce, edit and publish these videos. We thank you for your dedication to educating so many about so many different things.
excellent video Mr Pete, Im familiar with how and why we have differentials but I still Love watching videos on how they work, Keep up the awesomeness, and keep the kiddies enthralled with what your doing. thats how my grandpa caught me, the second thing he and I ever really worked on together was my Cushman Golfcart i bought cause I didnt like riding my bike around, he tought me about resistor coils, 36 V dc Motors, 6 v batteries in series. control circuits and how the whole damn thing worked, thanks again Mr Pete, Keep the shiny side up :-)
I guessed golf cart too, but a Cushman Truckster is very close since Cushman made a lot of golf carts. Great video! Don't be sorry if the video gets too long. Your information and explanations are gladly received no matter how long it takes. Thank you! Since you made such a nice cutaway for demonstration purposes, you should rinse out the rust, oil it up a little, and donate it to a high school or community college shop class.
+mrpete222 I don't know what scrap metal is selling for near you, but in northern Illinois it's a penny a pound. Lowest I've ever seen it. Not even worth the gas to take it there. You made an excellent demonstrator model.
Excellent explanation and demonstration. One additional tidbit of info. The number of teeth on a ring gear is always a prime number; never a multiple of any whole number. 31 is not evenly divisible by any number other than 31 and 1. This is to keep the wear on the ring and pinion gears even. That's why you'll never see a differential with a ratio of 3:1; 4:1 etc. It will be something like 3.83, 4.11 or 5.17 as in your demo.
+lordpantsington I won't question your source. But it's very unusual to have a ratios in whole numbers. When you have an 8:32 or other equally divided ratio, you have to mark the ring & pinion gears so that they match up to the wear pattern if you have to remove them for service.
+Dan Burch Sorry, but you have been slightly misinformed. Not all hypoid ring and pinion gear sets have a ring gear tooth count that is a prime number. The pinion in the video above has 6 teeth which is not a prime number, however the ring gear tooth count of 31 is a prime number and as such is termed a hunting gear set. Hypoid ring and pinion gear sets with equally divisible teeth counts are less common, are termed non-hunting or semi-hunting and are usually timed or indexed to each other. For those that are interested look up hunting, partial or semi-hunting and non-hunting gear sets.
thanks Lyle, that brings back memories. Looks like a Cushman rear end I wants to use to build a kart with a shaft driven motor cycle engine... Wish i still had tht rear end, as im currently building another,much less robust/modern version, for my daughter.
My dad used to tell me to apply the parking brake if stuck as it would force both wheels to turn somewhat...don't know if that was accurate as I never was caught without a 4wd in a situation like that. Great video, thanks Mr. Pete.
This was a very interesting video! I really appreciate your clear explanations and the demonstration was very enlightening. Thank you for posting this.
A very interesting video.I learned something new about blocking one wheel & the other turning twice as fast.Too bad you had to ruin the diff. by cutting a section out to make this video.I would have used this to make a homemade tractor.I enjoy your videos very much.I am a retired tool & die maker & I have subbed in a voc.tech school.Keep up the good work. Thanks
Mr. Pete, A friend of mine had one of those Cushman half trucks. We rode that thing everywhere in our little town of Perry, Illinois, in Pike County where I grew up. My brother had a Cushman motor scooter as well. I used to get out of school about 15 minutes ahead of him and would hurry home so I could take the scooter for a joy ride before he arrived. He was not a forgiving brother and I received more than one busted lip for infringing on his property or for no reason sometimes. No, I didn’t guess what the deferential came from.
I always like those half trucks. Wanted to have one. I did however have a Cushman all state motor scooter while I was a senior in high school. I dearly loved the thing
Just saw your description of a differential. A very interesting explanation was given by GM in 1937. Google “around the corner” to watch, I always enjoy your presentations. Keep up the good work.
Real good video and explanation. Interestingly many ATV's do not have a differential that are chain driven do not have a Diff and hence why they are hard to steer around corners especially if the rider does not lean to the inside of the bend to allow the wheel to slip.
Nice video, thanks for posting. It covers the basics pretty well, but I would offer a couple of clarifications. 1) Many "Rear ends" do not have a cover plate, all of the inner workings come out the front in an assembly commonly called a "pumpkin". 2) A differential need not change the direction of power transmission, that is the function of the ring and pinion 3) A differential need not act as a gear reduction, again that is the function of the ring & pinion. Regarding #2 and #3 above, consider the center differential in a full-time 4WD truck; in normal 4Hi mode it does not act as a gear reduction or change the direction of power transmission. A differential is ONLY the innermost 4 gears that you showed. If you remove the ring gear from the carrier, what is left is called the carrier assembly which "carries" the differential(2x axle gears + 2x spider gears) and mounts the ring gear.
Good video! We had ancient crushman vehicles at work that ran great up till about 5 years ago. They were also fun to drive with a little stick shift to the left of the driver. Someone decided to replace them with new electric vehicles that are pieces of junk. Chris
Another great vid Mr Pete. It reminded me of taking the diffs out of my friends cars,sneaking them into machine shop next door,and welding the spider gears.My shop teacher(who was a great teacher like you) would catch me and ask"what are you doing"?I would say,"just practicing my welding Mr.K".He would just turn away,shaking his head with a smile on his face.I was fortunate to go to public schools in a small town in Michigan next to Detroit where a man named Henry started a business that would donate their surplus mills,lathes,grinders,engines and drive trains to our shop classes.Can you guess his last name?Have a great holiday season,and thanks again for the vids!
Bingo!! We have a winner!! They gave us so many engines,transmissions and machines,tools,etc.It was a great place to learn trades.We had a great wood shop teacher too.Everyone called him "Pops"
Another great video mrpete! I would like to mention what happens to the "rear end" if you were to install it upside down. I've seen people install them that way in a dune buggy for mounting convenance, just to find out they now have 3 or 4 speeds in reverse with of course one speed forward. Funny things happens when the ring gear is on the opposite side and pinion turns same direction as it always did.
Fascinating Video. You do such a great job with these videos. Very clear, and informative. Were you a teacher? Thanks again. Very happy I discovered your channel. Ed
Whoever the originator of this mechanism was, they were ingenius. Front wheel drive transmissions still have a differential. I rebuilt a Honda automatic transmission once and finally got to study this mechanism while I had the transmission apart.
Awesome video! The second I saw that case and the gearing I knew it was a truckster axle. Ive actually got a few myself. Just took the backplate of one today to change the gear oil in it. Do you know what series this axle is, like a Dana 30?
I believe it came out of a golf cart i had 2 of them they I believe were a version of the dana 30, were also used I believe in the earlier army jeeps, the ones I had were 6:1.i was going to build a small tractor but figured they were way too slow.for what I wanted. again great video.
My third guess was correct but I removed my comment since you gave the answer in this video. I enjoy your videos and appreciate what you do. Guesses in order were a Crosley, then a round nosed 3 wheel golf cart and ended with the Cushman.
Mr Pete, the inventor of the differential name was, < Onesiphore Pecqueur > in 1827date. I understand that during the invention he lost his mind, due to the complicity , but when you see it it looks simple.
Good afternoon Mr Pete. I’m building one of your wobbler motors and have a question. Is there any special distance between the wobbler axis and the flywheel shaft centerline based on stroke? I’m at that point in my assy & wondering where to place the two center lines. Any help would be appreciated. Merry Christmas by the way.
Watch the video entitled make a boys engine by Tubalcain part two. In about the middle of the video I lay out the holes. I think the distance is 3/4 of an inch
In my field of work in television production the metal spikes used to tie off ropes when you are securing or flying a load are still sometimes called "Ford axles." Fun fact: They are also called "Bull pricks."
Thanks Mr. Pete. This was even better than what I envisioned. Using the miniature rear end was a very good idea. And you are right: learning **IS** fun!! This is the kind of thing that young folks in this country need to inspire them to be great. Technology is fascinating.
+Dave Kellogg Thanks for watching
If I could give more than one thumbs up I would. That was an outstanding demonstration. Thanks for all the time you put into this video. Very much appreciated!
+MrGoosePit Thanks for watching
Dear Mr. Pete,
You are a great teacher, better than thousands books. I wish you a long long life so you can help us to understand as much as possible. Thank you for all you do. I love you.
Antonio ( Italy,Rome)
+antaf56 Thanks-thats a great complement
Just got around to this one...thanks again, Mr. Pete. Nothing I didn't already know, having grown up in the automotive world, but I enjoy every minute of your presentations. Never should you feel like you have to apologize for length, content, or your views. I imagine most of us are here because we like to spend time with you. I notice that you've gained 59 subscribers since this afternoon, after all.
In an earlier comment, I mentioned how much my dad would have liked to hang out with you in your shop (as would I), but this Cushman axle demo brought back a long-forgotten memory. In the late 60s, he took me along to look at a surplus Cushman mail delivery three-wheeler. Remember when the Post Office had them, painted dark blue in those days? Seems like they had Onan engines, or perhaps OMC. Opposed twins, at any rate. Weird gearshift out the side of the steering column, or so it seemed to a second grader. This fellow must have had fifty of them parked along a fence row. I wanted to take one home so badly I could taste it! He was probably asking $50-100 for them, but we didn't get one. Oh well.
We did get an insurance-totalled VW Beetle about that time, though, for $65. Yes, sixty-five dollars. Really barely damaged, we drove it home in a continuous left-hand spiral around town because of the front-end damage. Totally disassembled it in the garage, repaired everything. It was a blast for nine-year-old me. My dad drove it for a long time, I drove it to college, even drove it for a while after getting married...about 16 years in all, I guess. $4 per year on the initial investment! Great, great fun. Wish my dad hadn't sold it.
+Mr. Alan thanks for watching--those are good stories. Yes-I remember the postal trucsters
Fabulously clear & informative. My first experience was when Father broke a half shaft on my Morris Minor. We got a scrap rear axle complete with brake drums (that unlike my drums hadn't part corroded through) & replaced the lot. It ran for ages before I sold it.
+Springwood Cottage Thanks for watching
Excellent demonstration of differential gears in action! Thanks!
+Physics Videos by Eugene Khutoryansky Thanks for watching
An old 4x4 drivers tip for a "slip" axle for yall. When you get stuck and the tire with the least traction is the one that spins, getting you nowhere. The tip is to "add" traction to that tire by applying pressure to the brakes. By doing that often times it will allow the tire with the traction to spin and hopefully get you unstuck. Great video mrpete. When i first got into 4x4 it took me a long time to figure out why my four wheel drive was not actually four wheel drive but only two.
Mr. Pete, I can't help but wonder how my life would have been different if I was exposed to videos like this when I was in my teens and twenties. I look forward to each of your videos because I enjoy learning and you make it interesting and fun. I like that you corrected your apology for the video length. It is what it is, we don't want to skim over important details, other wise it would not be sufficient to call it "What Makes it Work".
Thank you!
+bendavtx I agree with your thoughts, give us the details Mr. Pete.
+bendavtx Thanks for watching
My thoughts exactly. I was watching and as soon as he said, "sorry about that." I said, "no you're not!" Then like clockwork," no I'm not!" So funny.
That was an EXCELLENT demonstration!!!!!
Most vehicles I ever worked on have been front wheel drive, so seeing this was brilliant.
Thanks for making this available, appreciate the time and money that must have gone into making this fine video.
Thank you very much. And yes, I did have to purchase that rear end
Don't ever apologize for the length of your videos. You are having fun and edumatizing us plebs. When that happens, well, you want to make more videos and we want to watch more videos.
Thank you Mr. Peterson!
👍👍
Pete.
As always you do a great job with your videos.
For whatever it's worth, when I took "auto shop" in H.S. in 1949 we were taught that the gears on the 2 half "axles" were called "Side" gears. And yes, the differential gears have a counterpart in electronics as well. It is an engineering marvel. And as you say, it works automatically.
Keep up the good work Pete. You are a true blessing from Jesus.
May He continue to bless you with gifts from heaven. I only wish you had been my instructor when I was in school. I am sure I would have learned immeasurably more.
pat
+pat dee Thanks for watching--I don't know about being a blessing, but thanks--I will forge ahead with many more.
Thank you for your efforts to show us how things work, not only from a book, but in practical applications.
If you have a way, I'd love to see and understand how a "torsen" differential works. Thank you.
Pete,
You are nuts. Keep it up. Younger folk don't take apart stuff like we did when we were kids. Thanks for the great video.
Great video....length is not an issue. Your cut aways are always great. The best cut aways I have ever seen are at the EAA museum in Oshkosh of large complex aircraft radial engines. The cut aways are absolute works of art and some defy understanding how they were accomplished because they are so complex.
+C185Pilot Thank you
really wish i'd had a teacher like you when i was in school....think i would have enjoyed my metal shop class a lot more....(and probably learned a whole lot more!!!)
+Tim Hyatt Thanks-thats a great complement
Mr Pete, I watch ALL your videos, I love them! I just don't comment often enough! Thanks for all the fun demos along with all your teaching videos!
Thanks for watching & commenting
Even if you already know how a differential works, this is a fun video, and watching it work, LIVE, from the inside out just makes you appreciate the clever design! Thanks Mr Pete!
Thanks for another fantastic video! Despite driving all kinds of cars/trucks, farm equipment etc; I was obviously aware of the differential redirecting the force 90°, but hadn't fully understood how the wheel without traction would spin and at twice the rate. I look forward to sharing this with my two young sons. Excellent explanation and your attention to detail is appreciated.
+Robert Ross Thanks for watching
A really great demo of a differential. Thanks for sharing.
+cerberus Thanks for watching
Now you have to show us how a limited slip differential works. The ending of this video was quite amusing - you have a wry sense of humor, Mr. Pete.
Thank You friend, you have done us "want-to-learn people" a great service this today!
Excellent demo mrpete. Its ok reading how things work but seeing is believing. Thanks for sharing. regards from the UK.
+Gary C Thanks for watching
What a great explanation of differentials, Mr. Pete!
Thanks, Tree Top
+TreeTop1947 Thanks for watching
My old man taught me most of this, showed me some while we worked under my car. But to see it in action, on a table, in the light? This video makes things so much clearer! Thanks Pete!
PS - Now try and find something that small with limited-slip for the next video!
+Mic Nor Thanks for watching
Great job Lyle, Thanks for the experience, time , money and detailed information that you put in all the videos.
There is one thing that baffles me and it is why there always are about 15 people that dislike your work... I guess jealousy or just foolishness is the motivation.
The 15 or so people are Cushman fans, who freaked out when he cut the top off. These are hard to find rear ends. I have a Cushman myself, and when he said he was going to cut it, I yelled "NO " !!!
Awesome video! You're a great teacher!
+bradjk Thanks for watching
Merry Christmas Tubalcain! I really enjoy your videos and wanted to thank you for your dedication to teaching (and willingness to pass on your knowledge and experience). Hope you and your family have a happy New Year as well.
+Lloyd McMullen Merry Christmas- Thanks for watching
Great Video! Mr.Peterson, I hope you can continue to deliver your knowledge to the masses for a long time. you have an impeccable way to explain many things that few understand how they work.
Even more so that you have the talent to produce, edit and publish these videos.
We thank you for your dedication to educating so many about so many different things.
Thank you very much!
excellent video Mr Pete, Im familiar with how and why we have differentials but I still Love watching videos on how they work, Keep up the awesomeness, and keep the kiddies enthralled with what your doing. thats how my grandpa caught me, the second thing he and I ever really worked on together was my Cushman Golfcart i bought cause I didnt like riding my bike around, he tought me about resistor coils, 36 V dc Motors, 6 v batteries in series. control circuits and how the whole damn thing worked, thanks again Mr Pete, Keep the shiny side up :-)
+Jason Windecker Thanks for watching
I now have watched all 10. And enjoyed every one of them. Thank you!
+Richard Y Thanks for watching
I guessed golf cart too, but a Cushman Truckster is very close since Cushman made a lot of golf carts. Great video! Don't be sorry if the video gets too long. Your information and explanations are gladly received no matter how long it takes. Thank you!
Since you made such a nice cutaway for demonstration purposes, you should rinse out the rust, oil it up a little, and donate it to a high school or community college shop class.
+HemiRod23 Did not know that cushman made golf carts.
Good idea to get rid of the cutaway
+mrpete222 I don't know what scrap metal is selling for near you, but in northern Illinois it's a penny a pound. Lowest I've ever seen it. Not even worth the gas to take it there. You made an excellent demonstrator model.
Thank you very much--I have learn lots--please keep continue more and more--
Excellent explanation and demonstration. One additional tidbit of info. The number of teeth on a ring gear is always a prime number; never a multiple of any whole number. 31 is not evenly divisible by any number other than 31 and 1. This is to keep the wear on the ring and pinion gears even. That's why you'll never see a differential with a ratio of 3:1; 4:1 etc. It will be something like 3.83, 4.11 or 5.17 as in your demo.
+Dan Burch Sorry, but your statement is not true. Porsche GT3 Cup cars (996 and 997) have rings of 32 and the pinion is 8.
+lordpantsington I won't question your source. But it's very unusual to have a ratios in whole numbers. When you have an 8:32 or other equally divided ratio, you have to mark the ring & pinion gears so that they match up to the wear pattern if you have to remove them for service.
+Dan Burch
Sorry, but you have been slightly misinformed.
Not all hypoid ring and pinion gear sets have a ring gear tooth count that is a prime number.
The pinion in the video above has 6 teeth which is not a prime number, however the ring gear tooth count of 31 is a prime number and as such is termed a hunting gear set.
Hypoid ring and pinion gear sets with equally divisible teeth counts are less common, are termed non-hunting or semi-hunting and are usually timed or indexed to each other.
For those that are interested look up hunting, partial or semi-hunting and non-hunting gear sets.
+Dan Burch Thanks for watching
thanks Lyle, that brings back memories.
Looks like a Cushman rear end I wants to use to build a kart with a shaft driven motor cycle engine... Wish i still had tht rear end, as im currently building another,much less robust/modern version, for my daughter.
Yes, it was a Cushman. I gave it away to a high school for demonstration purposes
keep making more awesome videos . They are very informative. Thank you Mr Pete
Excellent explanation. Quiet an ingenious design on the part of the first inventor!
+Ky Sawdust Thanks for watching
Great video Pete. I learned a little something new today. Thank you.
+Duncan “DunMac” Mac Thanks for watching
Ashamed to admit that for 46 years I did not fully understand how a 'Diff worked. Now I do! Thanks
+enlishbob Thanks for watching
I guessed a Meter maid car/cart I was close !!!! Great demonstration on how a rear differential works
+not2fast4u2c Thanks for watching
excellent, I enjoyed the video very much. thank you!
great demo, of a working differential,keep them coming!!
+jdcastillo Castillo Thanks for watching
My dad used to tell me to apply the parking brake if stuck as it would force both wheels to turn somewhat...don't know if that was accurate as I never was caught without a 4wd in a situation like that. Great video, thanks Mr. Pete.
+dale pratt so long as you are on relatively flat ground and neither wheel is holed or too badly bogged down this will work surprisingly well
+dale pratt Thanks for watching
Excellent video Sir, thank you spending the time on this.
Excellent! And I'm old enough to remember when we would weld the gears up to make a Detroit Locker.
+Eddie Kawecki I remember that
That was interesting. Good to see that your Foreman Jordan is still keeping the fort in working order.
+Colin King Thanks for watching-he's holding down the fort
Mega instructive! Thanks for putting this together!
+CNC Dude Thanks for watching
Two thumbs up A++++ Enjoyed every minute!!
+Rosario W Thanks for watching
This was a very interesting video! I really appreciate your clear explanations and the demonstration was very enlightening. Thank you for posting this.
I'm glad you like that one, it was a very difficult and time-consuming want to make
Thanks again for sharing. I learnt something new today. cheers
+Ashley Ward (Ash) Thanks for watching
A very interesting video.I learned something new about blocking one wheel & the other turning twice as fast.Too bad you had to ruin the diff. by cutting a section out to make this video.I would have used this to make a homemade tractor.I enjoy your videos very much.I am a retired tool & die maker & I have subbed in a voc.tech school.Keep up the good work. Thanks
Mr. Pete,
A friend of mine had one of those Cushman half trucks. We rode that thing everywhere in our little town of Perry, Illinois, in Pike County where I grew up. My brother had a Cushman motor scooter as well. I used to get out of school about 15 minutes ahead of him and would hurry home so I could take the scooter for a joy ride before he arrived. He was not a forgiving brother and I received more than one busted lip for infringing on his property or for no reason sometimes. No, I didn’t guess what the deferential came from.
I always like those half trucks. Wanted to have one. I did however have a Cushman all state motor scooter while I was a senior in high school. I dearly loved the thing
Great vid. Men in the future will watch your videos and realise what we're lost.
Great stuff. .. awesome demonstration.
Thanks
excellent video sir made my day.. thanks for sharing..
+Kevin Willis Thanks for watching
Just saw your description of a differential. A very interesting explanation was given by GM in 1937. Google “around the corner” to watch,
I always enjoy your presentations. Keep up the good work.
I have watch that video many times. And I am amazed at what a clever video it is.
Real good video and explanation. Interestingly many ATV's do not have a differential that are chain driven do not have a Diff and hence why they are hard to steer around corners especially if the rider does not lean to the inside of the bend to allow the wheel to slip.
+Dan Whiteford Thanks for watching
Looks like you had a lot of fun! Thanks!
+Ernie Noa Thanks Ernie
Excellent vid Mr.Pete!
Regards,
Duck
+camojoe2 Thanks for watching
Nice video, thanks for posting. It covers the basics pretty well, but I would offer a couple of clarifications.
1) Many "Rear ends" do not have a cover plate, all of the inner workings come out the front in an assembly commonly called a "pumpkin".
2) A differential need not change the direction of power transmission, that is the function of the ring and pinion
3) A differential need not act as a gear reduction, again that is the function of the ring & pinion.
Regarding #2 and #3 above, consider the center differential in a full-time 4WD truck; in normal 4Hi mode it does not act as a gear reduction or change the direction of power transmission.
A differential is ONLY the innermost 4 gears that you showed. If you remove the ring gear from the carrier, what is left is called the carrier assembly which "carries" the differential(2x axle gears + 2x spider gears) and mounts the ring gear.
+FixItUntilItsBroke Thanks for watching--thats great info
Very good. I always wanted to know why they work that way when stuck. I learned something. Feels good.
👍
Good video! We had ancient crushman vehicles at work that ran great up till about 5 years ago. They were also fun to drive with a little stick shift to the left of the driver. Someone decided to replace them with new electric vehicles that are pieces of junk. Chris
+shadowdog500 Thanks for watching
These informative videos are invaluable
Thanks
Another great vid Mr Pete. It reminded me of taking the diffs out of my friends cars,sneaking them into machine shop next door,and welding the spider gears.My shop teacher(who was a great teacher like you) would catch me and ask"what are you doing"?I would say,"just practicing my welding Mr.K".He would just turn away,shaking his head with a smile on his face.I was fortunate to go to public schools in a small town in Michigan next to Detroit where a man named Henry started a business that would donate their surplus mills,lathes,grinders,engines and drive trains to our shop classes.Can you guess his last name?Have a great holiday season,and thanks again for the vids!
+Mr Frog thank for watching. FORD?? thats a good story
Bingo!! We have a winner!! They gave us so many engines,transmissions and machines,tools,etc.It was a great place to learn trades.We had a great wood shop teacher too.Everyone called him "Pops"
Good stuff Mr. Pete!!
This is a great series on a great channel. Thank you for making these videos.
+TheShoreman1 THANK YOU!
Thanks Lyle! Now it all makes sense, especially why the drive wheel spins twice as fast as the stalled wheel.
+Guzzi Ian Yes-Thanks for watching
Ah so, . . . the professor also teaches auto shop! Good video TC. Keep them coming. TF
+T 2thferry Thanks for watching
Thank you so very much for your work.
Great explanation. The cut out really helped to clarify.
Thanks
You might have mentioned the helical bevel ring and pinion gear tooth style and the their sliding action used to reduce noise.
Another great video mrpete! I would like to mention what happens to the "rear end" if you were to install it upside down. I've seen people install them that way in a dune buggy for mounting convenance, just to find out they now have 3 or 4 speeds in reverse with of course one speed forward. Funny things happens when the ring gear is on the opposite side and pinion turns same direction as it always did.
+Tom Corcoran interesting point
You are too good to be true! Thanks a million!
Id happily rebuild that & use it in a little kart build, after welding up the housing & new spring hangers of course.
Great explanation. I would really be interested in seeing a limited slip explained this way
+Randall Natomagan Thanks for watching-never seen the insides of one
Fascinating Video. You do such a great job with these videos. Very clear, and informative. Were you a teacher? Thanks again. Very happy I discovered your channel. Ed
+GrandpaCavendish Thanks for watching-yes, a teacher
Thanks for the video. i learn a lot. Just wondering, which tool do you cut these steel? is it electric saw?
Never knew how that worked thanks for going to the effort to cut that thing open.
Nicely done. Thank you.
Whoever the originator of this mechanism was, they were ingenius. Front wheel drive transmissions still have a differential. I rebuilt a Honda automatic transmission once and finally got to study this mechanism while I had the transmission apart.
Awesome video! The second I saw that case and the gearing I knew it was a truckster axle. Ive actually got a few myself. Just took the backplate of one today to change the gear oil in it. Do you know what series this axle is, like a Dana 30?
I do not know. The axle was already removed from the truck stir when I bought it
I believe it came out of a golf cart i had 2 of them they I believe were a version of the dana 30, were also used I believe in the earlier army jeeps, the ones I had were 6:1.i was going to build a small tractor but figured they were way too slow.for what I wanted. again great video.
Very interesting! Love those "How It Works" videos. Could you do one on a standard chain hoist?
+Robert A Moore Thanks for watching-I don't own a standard hoist
loved the video great job. Question, is that an 8n tractor I saw in your garage?
My third guess was correct but I removed my comment since you gave the answer in this video. I enjoy your videos and appreciate what you do. Guesses in order were a Crosley, then a round nosed 3 wheel golf cart and ended with the Cushman.
+specialks1953 Thanks for watching
Thank you for this one. I have to replace the inside of my differential on my 68 GTO. The ring and pinion gears are bad.
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Mr Pete, the inventor of the differential name was, < Onesiphore Pecqueur > in 1827date.
I understand that during the invention he lost his mind, due to the complicity , but when you see it it looks simple.
Nice demo!
Good afternoon Mr Pete. I’m building one of your wobbler motors and have a question.
Is there any special distance between the wobbler axis and the flywheel shaft centerline based on stroke?
I’m at that point in my assy & wondering where to place the two center lines. Any help would be appreciated.
Merry Christmas by the way.
Watch the video entitled make a boys engine by Tubalcain part two. In about the middle of the video I lay out the holes. I think the distance is 3/4 of an inch
mrpete222 - I guess I missed that part. I’ll re-run that video. Thanks for responding.
GREAT VIDEO !!
NEVER KNEW THE GEAR CHANGE , WITH STUCK WHEEL .
AREN'T MOST AXLES 4140 ??
+OLD WIPPER-SNAPPER Thanks for watching
i have been looking for one just like that one for the pinon out shaft is bad.
Once again I am educated, thankyou.
+rich kellow Thanks for watching
Nice job!
+Patrick Rooks Thanks for watching
great video as always, thanks
+russhellmy Thanks for watching
In my field of work in television production the metal spikes used to tie off ropes when you are securing or flying a load are still sometimes called "Ford axles." Fun fact: They are also called "Bull pricks."
+DoItYourselfMusician Thanks for watching-they were great stakes
Your cutaway would be a great training aid for a vocational auto class. Are there any vocational schools left?
Thanks, and in fact, I donated the differential to our local high school auto shop
..... Excellent, thank you.
Thanks for watching
What would happen if you locked both wheels and turned the pinion?
Excellent explanation
+Myron Marcotte Thanks for watching
Well one.... Thanks
+pierre beaudry I like your videos too.
You're welcome and thank you.... ;)
Model A or Model T differential?