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Welded differentials.....who is willing to admit that they have done it?

Hell ya. In high school on a buddy’s Pontiac. Pulled the cover, blew it out with air. Arc weld, a little fire. Rotated the carrier 90 degrees, more weld. Blew it out with the air hose. Good to go. Drove it like that for years.
Doug
 
I put Sure Grips in all of my cars. They work fine on the street. The one in this Dart will slip when I'm climbing hills and a tire isn't on the ground. Yeah, that is the function of the differential but this idea seems like I could have 100% traction in all instances. Since I have a few of these 3.23 sets to mess with, it isn't like I'd have much to lose. If it fails, how much would I have lost? What is a 3.23 open 3rd member worth anyway?
 
You don't have much to lose yes, I just don't like the way a spool (or this) drives.

As mentioned, slow speed turns suck. Also, measure the rollout of both rear tires. You don't want any difference when there is no slip between the axles.
 
Hey I've done it! The '73 Dart I had about 15 years ago. I stick welded that puppy and turned it into a brodie machine...what a pile that car was. Great fun out in the orchards and the country roads though...
 
I haven't done it but I had one in a 8.75 3rd member in a 74 Challenger with a 440 6 pack and 4 spd. They worked ok in a straight line but would scuff the crap out of the tires going around corners. I got them from a buddy who used them for circle track racing.
 
My brother and I used to pull home Mavericks and Comets back in the day. Brother is the Ford fan so they were his cars, but he had a 4.62 spooled center section for a 8" diff and he used it in multiple cars, the HP 302 and 4spd that went with that rear followed that diff into many of those cars. The spooled rear and the drivetrain and his and my driving style would eat axles though, but he had a pretty good supply. ;)
 
I've never done it, but don't be a pussy, weld the **** out of that bitch.
Let us know how it works out.
 
I've never done it, but don't be a pussy, weld the **** out of that bitch.
Let us know how it works out.

Hey, Greg can be a pussy if he wants.... After all, you are what you eat..... Just don't be a dick... Or an asshole.... Well I guess some go that way... Don't ask, don't tell....
 
It was just an idea....I'm off work and ideas come through my head all the time.
Kern, I just have to add please dont ever weld anything pre cleaned with brake clean spray.
I know over the years it's been common to do. But the fumes from burning brake clean have killed more than one welder.
 
I have heard that too. Thank you.
 
A little gas and that Dart will turn on a dime wet or dry pavement. A heavier car not so much. And this is only going to be used in your backward to have some fun. So why not?
 
Done it several times...i think we used a bunch of grease on parts so the slag didn't stick to bearings and gears. Used nickel w the stick welder, wire welder was much easier. Axles are the next weekest link but haven't broke one....yet. big tire I think it would be game over for the oem axles. At least a 8 3/4 the tire should still stay on if a axle gives up. Go for it I say.
 
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The axle is from a '68 Coronet. Stock 6 or 7" wheels is about all I can fit in there. I have 14 x 5.5" wheels on the car now with 215-70-14 tires.
 
I did it once in my daily driver when I wàs a poor kid (well poorer and younger) everyone did a posi burn out as I went peg leg ! Worst thing I ever did to my poor charger I eventually swapped rears to a real sure grip unit !
 
Done it quite a few times, never a problem, always with a MIG. As clean as you can get it, and don't skimp on the weld. I still have one in my 68 CJ-5 that is almost entirely street driven. Just put a spool in my 67 Belvedere. I love em, simple and they don't wear out.
 
Done it quite a few times, never a problem, always with a MIG. As clean as you can get it, and don't skimp on the weld. I still have one in my 68 CJ-5 that is almost entirely street driven. Just put a spool in my 67 Belvedere. I love em, simple and they don't wear out.
 
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