I am restoring my 78`40.I have my sbc,SM465 and a plate(.75 thick)adapter to a 72 3 speed case.I have bought the AA rear transfer case mount setup.Will I have to remove my stock rear tubular crossmember?Also how will my driveshafts hook up?The reason I am asking is that I have the cruiser down to the bare frame-and I am trying to do all the demo/welding before I put it back together.I figure that the only thing that I cant weld on is the rear crossmember mounts,because I dont know my length yet.Thanks for any input!!!!!