didnt someone come out with a kit to bolt one up under a e body?
buddy is wanting to do his e body cuda so any info of any sort would help

don't know of any independent kits, however unlawfulracing.com make a 4-link (I have the b-body one -top system)

i thought mcg had(or some mopar mag) a ad about it,was like the new challenger but has beefier axles and made for the muscle cars
was wanting to say it had something to do with mancini?....

There was a guy who seemed to have pretty well thought out custom designed IRS stuff in Cocoa Beach Fla, "321"?? something. He was small time but seemed to have the bases covered. I toyed with an E body IRS set-up, currently I got a Caddy CTS IRS package on the shelf waiting to be installed, but the center section torque limits are its big drawback, but if I resist 1/4 mile use ?I think it might survive.

http://team321.com/321HotRodIRS/321HotRodIRShome.html

What about using the rear setup out of the 1989-1997 Tbirds? They use the 8.8 rear gears and you can even swap in the 2003+ Cobra diffs. Don't know the measurements on the width. Also, these have a 4.25 bolt pattern that can be changed to the 4.5 pattern with the cobra hubs. Just an idea.

Most reproduction Shelby Cobras use the rear from an old Jag. Think the 78-87 XJ6 sedan or the 78-94 XJS coupe. The rear will handle the torque of a V-12, and a 428 side oiler, so I think it could handle probably anything else you could put at it. The minus is FINDING one of these rears- as many have been pulled already!

Also- in the same vein- Look at set ups that are offered for the Shelby Cobra Kit Cars. If they are using the XJ set-up, then I am sure someone is making a bolt-in that is based on it.
The plus is you get Ford bolt spacing- same as Mopar. Not sure of track width, etc...

Hope this helps!
CC.