Thanks i haven't checked these forums in awhile. A buddy of mine gave a SB350 i'm just going to use the standard transmission that came with the straight six. The cylinder head was cracked, the second piston is destroyed. Something was bouncing around. So I was decisive of whether i should rebuild or swap. When we took the tranny out, turns out the pressure plate and and clutch are new. Might as well use it right? whats the best rear end to use i mean the stock one would work right? I was thinking of disc brake conversion. and sooner or later going ls.