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Fan clutch. Check it!

Man i was dreading possibly having to rebuild this transmission but it seems possible thanks to your video! Think im going to give it a try

I cant get the ignition switch cover off. Need to replace the wiper/headlight switch. How did you get your plastic cover off?.

Looks good what brand of tool ?

great build! looks like you achieved your goals. how did you know that you had several bad lifters? would be great if you could do an in depth video, with what you have learned. thanks

all the positive comments are positive for a reason great instructions.

Great instructional video before I saw this I was about to pull my hair out very detailed you are a great teacher Thank you for making this video.

Appreciate this video so much...very comprehensive, and the details you added were very helpful...probably not easy to shoot that level of detail but they were excellent and well worth the effort. Thanks again and great job

awsome raybestos blue clutch HI-PO

I made it to the end and I got a question

I have to say your teaching is so on point! Thank you for spending the time to do this!!

very helpful. makes me wanna swap my 4l60 out and 5.3 with 480 and 6.0 or 6.2.

I think you missed the reverse band.

Great video bro

Thank you many nay sayers saying its takes special tools and knowledge and I’ve always been on the fence of doing it myself or paying someone well after three different builders and three short lived transmissions in three different trucks i think its about time i take it on. So thank you.

by far best video i have seen yet thank you.

I’m literally doing this now lol I’ve done 2-3 4l60e transmissions lol

damn good class

What is the initial timing set at? The reason I ask is because I have a gen vi 454 and used the method you showed in one of your videos to set the valves and the engine runs very rough at idle. I’ve read that initial timing should be 4 degrees BTDC and some have said they’ve been up to 16. What would you recommend?

Awesome video man, I'm doing a 4l60e to 4l80e in my 2004 sierra 1500 and this video definitely help me finally decide on rebuilding it before installing it. Thank you

ahh my Immigrant Norwegian brother. you around MN.

this is awesome .

Great video very helpful..... bt can ya help me out where to get the U joint and bearings.. bc the auto places here don't know what I'm talking about.. I have a 84 c10 chevy

Best OVERVIEW transmission video I've EVER SEEN!!!!! Bravo!!! Thanks so much!

Would you use those rocker studs if you were to use a stud girdle ? Or go with a taller rocker stud ?

I hope this comment gets read, I own a 1978 Chevy Q5 blazer I started up let it idle. Go to stair it to the right. It does not steer to the right go to stare it to the left it stairs to the left. Can you help me it had a 4 inch lift 36 inch tires

What gas did u use for welding ur stainless steel exhaust?

Very helpful video. I have the transmission bench videos and the ATSG manual already. Can’t decide if I should buy an expensive rebuild kit or just get the parts suggested in the video. What do you think? I have a 383 SBC making low 400’s HP and Torque in a 2WD C10. Would appreciate hearing your thoughts and what you chose to do.

Great overview. Thank you for doing this!

Seriously thinking of rebuilding a 4L80E core I have...that i Just swapped out with a rebuild I had from from another truck (that i took out of service )worked out okay shift's good How much were all the parts that you used including the upgrades you mentioned ?? I have more of these in service on my trucks so I was thinking of rebuilding the one I pulled out (which lost reverse by the way) i know some of issues with the reverse servo ect.( I saw videos on) I've done some manual transmissions & motors and I've done a lot of motorcycle . transmissions, & motors,;also rebuilt industrial, refrigeration compressors stuff like that Never did an automatic transmission always was a mystery 😂. Thank you again for the video You're a good man. .. definitely makes you understand what you're up against if you try to rebuild one of these Louie

Fantastic video yes it was very helpful!

I have looked at other videos and your was the best Thank You

What tool can i use to get that top silver ring out that holds the bearings in?

Amazing video and content for 25 min. Thank you!

Beautifull video! Well done! Your way of explaning things is awesome!! Thank you.

great video thank you

ive been looking into rebuilding transmissions for some of my projects and I really appreciate your info. thanks for making this video

Would you be able to tell me the size of the reamer that you used to oversize the valve body ?

Need to buy better lifters! Cheap Chinese lifters equal junk!

Heck yea it was worth the watch! Deff pumped me up to save money and do mine

Anybody know what the piece in between the lever and the tab for the high beams

The real question is……………… how much grease do you put in the hubs? Very controversial. I’ve seen them loaded up to the brim with grease which burnt the bearings out and just a small coating on the race, fill the bearings and a little on all the splines. Maybe a little squirt for good luck. I am interested in the crossover steering. Mainly for comfort. I don’t rock crawl but mainly hunting trails so it’ll be nice not to have the steering wheel get ripped out of my hand. My3/4 ton suburban has the 10 bolt front and my 80 parts frame has the Dana44 which I’m planning on swapping around because I hate th adjuster sleeve and the d44 is stronger from the factory. No need for a d60 honestly. Awesome videos by the way. Very detailed, clean working environment, and not too much details to scare people away from doing these jobs themselves…… awesome stuff, I’m glad you posted your work!!

Thank you very much for the effort you put in this video! It was perfect, I've done a few c6's and th350's so i didn't need a 3 hour long snooze fest. I'll be yanking my 4l80 in a couple weeks, thanks again! I liked and subscribed, i have a small channel too so i know how much it helps!

Thank you for the time you spent making this video it was informative

Thanks for sharing, makes the thought of rebuilding a 4l80e less daunting

I will also replace all of the bushings in these transmissions when rebuilding them. There is no wear limit specifications listed for them either.

Great job on your video. There are some key differences between the early model and the late model 4L80E. You found one difference on that Sprague in the overdrive/overrun hub. You have an early model (1993 and earlier) with the larger Sprague. The later units (1994 and above) have a smaller Sprague with a different groove for the snap ring. I noticed how you skipped right over how to assemble the two parts of the aluminum overdrive clutch hub. There is a special tool for that process, however it can be done without it as you probably figured out. It just takes some time and some patience! As an engine builder as you mentioned, there's one key difference between building engines and automatic transmissions that I've noticed. With engines, we always have wear limit specifications for things like cylinder bores, rod and main journals, piston ring end gaps and the list goes on. With automatic transmissions there appears to be none of that. It leaves the builder to "guess" what's ok and what's not ok to reuse. This has bit me more than once. I will now always buy new spragues, new shift solenoids, new TCC solenoids, new internal harnesses and new pillow block switches when rebuilding these 4L80E transmissions because of this.

You should make these headlight harnesses and sell them.

Where did you get your steering knuckles?

You know, I can remember back when I was a teen in early to mid 90's. My Gpa had a truck not too old at the time that he paid a shop about $3k. Translate to todays inflation costs and bs, that's about $8k-$9k. I think altogether, at most a rebuild kit is $600-$800. This is well worth the effort. Thanks for this great DIY content that wasn't so easily available then.