I need some opinions on the 8 3/4 rear end... some guys say it's comparable to Ford 9" strength and some guys say is only rated for 500hp. I talked to Moser about it a liyyle. The guy I spoke with said that with their alloy axles (which i need anyways to change bolt pattern) and a back brace it might hold more power, but mine is o my a 741 3rd member so possibly not.
I've considered narrowing mine to give me more options for wheels with zero offset. I can do the work myself, but by the time I buy the leaf spring inboard kit, axle shafts, back brace, clutch rebuild kit for my Sure Grip, u bolts, new leaf springs, housing ends and disc brakes, I'm going to have a ton of money into it and then could still possibly have a failure...
Or... take everyone else's advice on the C6 Vette rear suspension parts. As far as I know they are still available for $300 and include the breaks and wheel bearings just like the front. But then I would need a center section and CV's.
After talking to a friend about another friend's LS2 swapped RX7 and the rear end setup in that, I got an idea. Ford Explorer 8.8 diffs have limited slips and 3.55 or 3.73 gears. Plus they are aluminum and have edgier diff mounts than something like the Cobra Mustangs. I can get one out of an 07-10 Explorer for around $350 unless I find one in a local pick n pull then it would be $85. The kit for RX-7's says that they have customers with 1,000hp through them and haven't broke them.
The next problem would become the CV shafts... I called The Drive Shaft Shop because it seems like they are the leader in aftermarket CV shafts. He said it would be no issue to adapt the 8.8 to the Vette wheel bearings. They build shafts for both the Corvettes as well as the Cobra Mustangs and all they would need is the length measurement at ride height and suspension travel and I would be all set. The big kicker though was the price...
$1700!!!
So I'm not 100 percent sure what to do about it but I'm pretty sure my A Body 8 3/4 will be for sale complete with drum brakes, parking brake cables, and anything else anyone wants so shoot me an offer on it!
Here's a pic of the Vette rear suspension from his Craigslist ad
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