The front of the torque tube housing is joined to the rear if the original transmission, the rear of the torque tube is part of the original pumpkin. So the original rearend
mounts allows for slight (very slight) rotation of the whole rearend housing beings that the torque tube kept in position. The newly welded in spring
perches is the only thing that keeps the rearend housing in position after the torque tube goes away.
My original axles fit perfectly into the '55 pumpkin with no modification.
