[markjohnson]

Wow, that's really a downer if that weld is actually covering the "B" in "BE". If only they would have welded those ladder bars about one inch more outwards! I think that there was also a "PE" rear axle code also that could also be a candidate for your 12-bolt. I'd have that rear axle cover removed in seconds to see if you have the good COPO "BE" spider gears and clutch plates. There's a good chance that factory stuff is still in there because there many 10-second COPO 427 Camaros that were still running factory 12-bolt Posi carriers instead of spools. That's how durable the factory COPO "BE" components were!