i have a 01 z28 A4 . i blew my rear awhile back and just to get it back on the road i put together an auburn pro series differential w/3.73 gears w/my stock 10 bolt. i use my camaro as my daily driver being its my only car and as my race car . i recently just broke the 12s and have the itch to go much faster. with the things i have in mind i know i ll need a better rear. i want it to be a 11 second car that can still be street driven. i was thinkin of building a 12 bolt junkyard rear but im not sure how good that would be. please help lol

 

you gotta add a torque arm mount, and that stupid trailing arm deal mount. And even then you can warp the housing. why oh why did do waste money on a 10 bolt if you wanna replace it.... 7.5" ers suck... But I really donno **** about 7.5" 10 bolts, just that they are weaker than my 8.5"....

 

like i said i had to throw something together quick to get it back on the road since it s my only car . what i have in there now is not to bad held up enough for me to run 12.8 but i wanna be in the 11s and it wont withstand that so thats y im askin for help so can anyone who knows what my best options are please inform me

 

i had a 7.5 in my camaro and i went 10.0 on it no prob. so i would stick with a 10.5 until it breaks

 

One option is a 12 bolt...thats what I have. Got it from Moser Eng. The 373s were loud so I had a gear pro set em up correctly,now its as quiet as the stocker was.

 

A built or almost stock 12bolt will be fine for what you want. For that matter, so will a 9in, or if you want something bulletproof, get a Dana 60. All depends on how much you want to spend.