I'm looking at some rear end online and not sure which way to go. I have a 83 cutlass supreme. Plans on a badass 455 stage 2 200r4. I know my rear end won't hold up so I was looking at the currie and moser 9" rear ends being a street car I'd figure the 3.50 gears. But i don't know what spline count. The diference between true lock and detroit locker or a spool. I know I don't want a open diff. Please skool me on rear ends. All help is appreatiated. Thanks

 

How much horsepower?
Cheapest way would probably be a Ford 8.8 traclock with new perches.

 

Im looking at 450 to 500 hp with about 550 to 600 ft lbs

 

Sounds a little bit rude, doesn't it?

 

If you plan on driving it on the street. You don't want a spool. I wouldn't go less then 31 spline.

 

Build it once,& have the right parts in there to handle any future plans for more power. As mentioned above,there are some G-body guys running the 8.8" Ford rears out of Mustangs.If you want to buy something all new,I would get the Moser 12-bolt for the G-body.A little less weight than the 9" too. Build it with 33-spline axles,Detroit locker,& put the #7900 housing ends on it,so you can run GM brakes.Those ends will take the 64-up A-body backing plates.Have the axles made for the Timken SET-20 roller bearings,as those are better for a street-driven car than a ballbearing design.

 

I was looking at the moser units cause they are pretty much bolt on units. Is there a pre made 8.8 and can it handle a hi po 455. Without being too concern about it. Also are the locking diff just a limited slip or the ones that sound like a rachet around corners

 

quickperformance.com has bolt in 9" stuff