Same as the title, helping a friend do a low budget build, we pulled the rear out today. He wants a posi and a 3:73. Used is fine but has to be in working order.
So need a 373 posi for a 7.5. Helping a friend with a low budget build 84 cutlass. Has a 307.
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26 spline early S10 4 wheel drive. 4 cyl auto or stick. 28 spline same set up but 1990 and up. most of the 4 wheelers were posi most 4cyl ones were the lowest ratio.
They will probably be the Gov Bomb posi in the S-10's but they should be fine behind a stock 307.
I did a relatively inexpensive build on my 7.5, 26 spline axle a few years ago. Gutted my case and installed an Auburn Gear 3.73 ring & pinion, Auburn stage 2 limited slip carrier and a bearing kit for about $700. I'm sure everything has gone up in price, but including junkyard axle cores.
Astro vans as well or look on Ebay.
You might also have luck looking for an 85-88 Monte SS rear as they all came with 3.73s
You might also have luck looking for an 85-88 Monte SS rear as they all came with 3.73s
Not all of those had clutch packs though. Got raked over by a salvage yard that way once.
Correct. Neither did all of the S10's. But there are deals on 3.73 posi Monte SS rears that pop up from time to time.
Best I got was I got a whole ElCamino for parts and the yard had no idea that it had a 3:42 posi that had gotten rebuilt in it. Paid $600 sold some parts from it saved the rearend total cost $200😎
Yeah, most Astro Van's are 3.23 open. The Wrecker had to open quite a few to get 3.42 gears and still open.
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