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Just the video I was looking for! Thank you for this!

is this in delaware?

Nice Roadrunner!

BE THERE! #nonamenationals

Young James Taylor William Martinez Michael

Lewis William Hall Daniel Brown Jeffrey

Just like that!👏

Very helpful! I picked up a homebuilt post hole digger for my tractor with an unknown diff in it. I finally figured out its a Mopar rear with a 207041. It has a leaking pinion seal so need a replacement. I think the diff will be OK with 40 horse power right?..:)

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I have a 742 peg leg with 2.76 gears, I always heard the 489 was the better of the three.

Sweet Roadrunner ! !

So why does everyone sa489 I got a 742 489or 88 gears someone had it in a 340 400 dollars do you think the 742 with a big block will be cool 391 or 410. Gears I think the 488 or 9 would not be good for the old 440 cause you can’t rev like a 340 ?

SORRY , The biggest Has the biggest pinon shaft ! Almost all 741 were were non sure grip , many 742 were sure grip. The 489 is the newest model1

I have a question. I have a pair of 741 case carriers. The open axle, I'm replacing with a sure grip. Do both carriers have the same axle spline counts?

The 489 housing has an 1”7/8 pinion. The 742 housing as an 1” 5/8 pinion OK, the 742 has a large pinion bearing. I would rather have a large pinion shaft, wouldn’t you, think about it? Would you not rather have a large pinion. BIGGER is better. I am 66 and have ONLY ran the 489 diffs. From to street to hard drag racing. My only issue is the 30 spline is too small to race with. That’s my opinion everybody has one need to know the facts.❤

Iam sorry miller really nasty lol

How long does it take to cook that

Hell yeah

Texas poppers hold that bacon tho

Save me a few of those.

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Hi Ron. Love your Channel!! Can you help me out. Have a 66 Belvedere with a 440. The rearend is 8/34, 489 with 3:55 gears and has to be changed because of a loud whine and banging in the rearend…sounds like someone hitting a pipe with a hammer …Want to change to 3:23 for better gas mileage and lower rpm ….Tires are 27540R17 on the rear Do you see a problem changing? Anything else needs to be changed? Any advice is appreciated Thanks Dennis

Rad

I'll follow my nose and find them. Oh Yeah!

BACON!!🥓🥓🇺🇸🇺🇸

I had a Challenger 1/2" wrench which was my favorite wrench - I think someone stole it out of my car years ago. Seen a couple guys replace those main contacts, in Toyota/Denso starters, on the Toyota forums. It's really better to wire those starters with a proper power cable, and a separate trigger wire from the switch. I was never a fan of constant voltage to the starter, especially via that fat cable, though I've never had a problem.

Looks like a good project, though.

Perfect, I just picked up a square back for my 66 imperial that had the old round back. Was wondering how to deal with it. Thank you!!

Ok I have found myself in this exact scenario EXCEPT: My old alternator (1965 Plymouth Barracuda) is a round-back single field. I ordered an alternator online an the one I received is a round-back dual field. NOW WHAT?? OK, upon closer inspection that 2nd field wire connector does not look like a connector at all. I guess I'll just one wire that thing and fire it up!!

Amazing!!! ..thank you man...that was very helpful, you are really good at it...bless you brother.

Sorry Ron, I accidentally timed you out on Bucks live. A thousand apologies!!

Great video thank you !🙏🏼

Its an 1/8th mile track, your car didn't miss anything cool.

Isn’t the 489 the strongest?????????????

Thanks, now I have a clue at the swap meets

Very informative video Ron! I’m gonna check mine out! What’s the difference between dana posi sure grip or limited slip?

Thanks for help making it a great event!

That RR would make a FINE diecast... It'd be really cool if I could find your email. Lol. -Vic

I love me some disk golf

Heck yeah!

You might want to bend the grounded tab down so nobody in the future plugs the field wire onto that post and smokes the regulator.

Glad you like it!

Excellent Old School video. Many thanks for clearly showing the part number for the mini starter solenoid rebuild kit. Just as the Internet changed everything in our world, RUclips videos made by folks like you and me have changed in providing a consolidated brain trust where folks can see how these old school repairs are done. It has been decades since I have worked on a Mopar, but I have a lot of prior and recent experience on 65-73 Mustangs and Shelbys. Lynda (wife) and I have posted a lot of How To videos on diagnosing and repairing those vintage pony cars, where like yourself in this video we are trying to help other folks see what it takes to work on those treasured vehicles. So, Kudos, and Thank You for taking the time to make this video (and others I presume). Finding and watching this video came at a good time. Why? Well.... I have an acquaintance bringing his 1968 Plymouth Road Runner over to our place. His starter is making a grinding sound. I am hoping his flywheel teeth are not all chewed up (383 with 4 speed). He may or may not need the solenoid rebuilt, but as long as the starter is out it makes no sense to not at least take a look and rebuild it as needed. He also has a mini starter (lucky break), so like your vehicle I ought not need to unbolt a bunch of things. We will see soon enough. I am at this moment trying to find where I can purchase some starter shims in case that is what is causing the grinding sound he is hearing. Old Ford Starter Relays (often incorrectly called solenoids) used to be bolted together, and when the relay's internal copper contact disc and internal terminal faces wore and pitted due to arcing we could unbolt the relay bolts (small bolts), flip over the copper contact disc, then turn the copper terminals 180 degrees so their previously unused bolt head surfaces would be in position for contact with the unused disc face. Then I would put the relay together and tighten the colts and nuts. Back in the 70s Ford began to use rivets in an effort to assemble their Starter Relays in order to make things harder to for folks to qickly rebuild the Starter Relays, which meant they sold more of them... Progress, eh? Anyway, back to you video. I do not know if the Road Runner has power steering or not, likely not, but he does have headers (Doug headers). So, in that respect your video is also very helpful. He has volunteered to be cameraman so we can record our project. If it turns out well I will post it, and within the description I will place a link to your video. Hey, all I can say is Old School vehicles rock! I am fine working on electronic and computer controlled vehicles also. But it is on the old school cars where I cut my teeth in the early 70s. I am so grateful for heaving learned toe older systems, and watched as the automotive world transitioned to electronic ignition, then to computer controlled engines. I have touched it all, and love the older systems as much as the newer ones. But, there is just "something" about old school ignition systems that really trips my trigger. My RUclips channel, in case you or anyone reading this comment, is interested in vintage Mustang & Shelby auto diagnostics and repair issues: ruclips.net/channel/UCYzXvUaH0ph4c_O9dR9a1sw

Super sized

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Excellent job. Clean welds.

Vroom vroom

Vroom!

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