I'm planning to replace my 235 inline with an SBC V8 in my 1955-2 Chevy truck. Do most people leave, modify, or remove the original rear engine support crossmember in their truck when replacing the original inline six with a SBC and 700R4 tranny? I currently have the SBC with a 700R4 suspended in the engine bay on a hoist to clear the rear crossmember and the combination seems to fit in the engine compartment, although somewhat higher than normal.