welding a 3rd member

[dbcollector]

does anyone know how to weld a 3rd member to make it a posi

[68_Val_Sedan]

do not do it ... it will make he spiders brittle and grenade, spend the money on a posi and do it right ....

[oldkimmer]

..... ......ur will b getting a lesson u do not need or want....kim.............

[Bakaruda]

I would agree. If you do it just put weld on all the spider gears you can. This will make it junk when done.

[bbscamp]

Key word....he wants a POSI  (chevy eh?).  I'm going to weld up the spiders on a C body 8.25 to make a zero slip rear.  It for the demo derby....it WILL be junk for sure!!

[bOb shingler]

I would agree. If you do it just put weld on all the spider gears you can. This will make it junk when done.

   

[codfish]

And if $$$$$$$ is a concern, a spool would be cheaper.

codfish

[doug 371]

me and a friend were at a wrecker 1 time and we found what we assumed to be an a body 8.75 with 3.91 sg...guy wanted $100 so we went halves on it...he wanted the pumkin, i wanted the housing...took it home and pulled it apart and it was all welded up......he put it in his car anyway...it was fairly short lived...my part of the deal was fine though

[cory]

yeh if u want    seen it happen on nice strip duster

[Blvedere]

We used to make these Lincoln lockers when we ran roundy go round on dirt tracks.

[PureGTS]

I never understood why the folks on Junk Yard Wars didn't do it more often.    I think as long as it isn't stressed, like on dirt or for a very limited use, like one pass, you may get away with it. But as a long term fix...  uh, no. I know the chick on Extreme 4X4 did it, but that's her. It wasn't her ride to work. I might do it to something just to prove a point, with something like the Demo Derby car, but not on something I was planning on keeping/replacing.

[abqdart]

There is a few guys that I know that did it and ran the snot out of them for a couple years. Not 600 RWHP but behind big blocks that were putting out enough to get them in the 11-12's. 

[grudd440]

no, not safe. but me and a friend welded a 7 1/4, the smallest /6 diff. it worked and ran a low 14. when we were young and dumb. we changed it before it broke. a spool would be cheaper , but not so good on the street.

[79ramcharger]

Key word....he wants a POSI  (chevy eh?).  I'm going to weld up the spiders on a C body 8.25 to make a zero slip rear.  It for the demo derby....it WILL be junk for sure!!

I've done it for a derby car. It lasted several cars. It is a pain but doable. The trick is getting everything aligned. Here are my tips: Get it clean no oil at all. Do not use stick or flux core. Align and tack it. Assemble check alignment. Take it back out and weld the snot out of it.

Steve

[abqdart]

All I am saying is let your conscious be your guide....

[MyCreation68]

We had one in our race truck and it broke. We got lucky and it just snapped the welds and didn't get to messy. replaced it with a minispool