Check with the Houston F-Body facebook group; I did see an ad a while back on CL that has expired now for one.

Do you have the cats/pipes that bolt on to the manifolds? I cut mine out and made my own pipes, a 4' section of 2.25" tubing and a couple of mandrel 45* bends where all I needed; a couple of 30* bends would've made it perfect though.

You also want to find the hanger bracket/bushing that hangs off the back of the tailshaft housing; it connects to the passenger side of the y pipe:

http://www.installuniversity.com/ins...ypipebolts.jpg
http://www.installuniversity.com/ins...emberbolts.jpg

I have the metal piece that bolts to the exhaust and stabs the bushing, but you will have to find the bushing unless your pullout assembly still has it?