Having disassembled my 55.1 with a hydra-matic about 10 years ago, I am struggling to remember the rear tranny mount to the crossmember. I am putting in a power brake kit so I needed to remove the original tranny crossmember and put in a tube type one for enough clearance for the brake lines. Has anyone done this? What did you do for a rear tranny mount on this tube crossmember?