I was wondering if anybody in the tri state prefer new jersey has a kit or can put a 9" ford rear in an FD no mini tub non of that just slap the rear and make it look stock. i know they sell the cobra IRS kit for the fd i already have that subframe kit. Im just afraid im going to snap the axle and hit the wall considering my HP goal is going to be around 1200HP. any info and pricing wound be great.

 

wow over 80 views and nobody can help me out?

 

Your best bet is to buy a bare 9 inch housing from Moser or Strange and build your own custom diff. If you still want it to be streetable, you can always make the setup with something like 31 spline with a Auburn LSD spool or something like that. Your first step is buying the rims that you'll use on the car. Then begin measuring from there. Good Luck.

 

Lots of Ford diff swaps in the LSx RX7 world. Check out this site.

Guy