will a solid rear end out a FB rx7 bolt right in to a FC rx7?? reason i want to know is i have a built v8 FC and i cant even launch or drift the damn car cuz i know the rear end will go out in it..and it sucks...dude i know has a FB and a built v8 with a 125 shot and launches at like 4K and its super fine????

 

if strenght is what you're worried about, you just need a TII rear end. there are guys in the 9's with a stock rear.
if you really want a live axle, Grannies has a kit for the Ford 9"

 

so you think a stock gxl rear end will do?? i have prothane control arm bushings and the diff is literally welded to the cross member under it. so literally like solid diff bushings.

 

The GXL is not a T2 diff. Get a T2 diff.

 

^^^ i know this lol...t2 diffs are a little priceeeyyy though!!

 

not as pricey as swapping ANY straight axle/live axle rear end.