Well thats effing dumb. All the crossmembers should be drop out style. Thats a mod i would be making, or id sell the car. Seems *** backwards to me. Come to think of it, a long time ago a buddy of mine had a 73 350 4 speed vette. It needed a clutch, and he mentioned to me that the crossmember was welded in. I think i said why the hell would they do that. He took it somewhere to get the clutch changed out.