Rear end advice.

[rIbBaD]

I was just wondering what the best rear end is I can fit in my 86 cutlass without mods, I expect to me pushing about 500 HP when its done, and what the best gears are, also what the best rear end would be with extensivve mods, Thanks.

 

[84cutspreme]

8.5" is the only bolt in one and much stronger than stock 7.5". 12 bolt & Ford 9" from existing cars require most fabrication and mods to install. Although now Moser I believe makes a bolt in 12 bolt, and a whole bunch of companies make bolt in 9"s. 8.5" is by far the cheapest and easiest strong upgrade. I am under the interpretation that the 12 bolt is the strongest option, but I am unsure whether the 9" is stronger of weaker.

 

[cdg1984]

Theres bolt on currie 9's in summit and jegs. Their like 1000 bux for the housing and axles though. Also some bolt on 9's ( not sure of the brand) that ive seen in ebay motors.

 

[moose]

Moser also has bolt in 9" and 12 bolt options for gbodies