[bobzdar]

Originally Posted by pontiacjeff

If I were you, I would do a C4 corvette rearend. It is MOSTLY a complete unit, the only "floating" parts are the control arms, but they have a nice mounting bracket that bolts on that will line up real nice with the rear frame rails.

http://cgi.ebay.com/91-96-Corvette-C...item1e5feef914

My next-door neighbor at the shop dismantles C4's and has about 6 of these right now. Dana 36 came in automatics and Dana 44 in stick cars. The 36 would do fine for a street Firebird. Guys put these in all kinds of cars.

I've read that the geometry on the 4th gen rears is much better than the 3rd gen as well, I would go with xj12 rear or c4 rear, whichever you can find cheaper. Only benefit to the xj12 is the inboard brakes so less unsprung weight. Both are pretty easy to find and not too expensive (I've looked at the xj12 rear, found them for around a grand).