Installing 75 chev pu 12 bolt rearend in 55 1st pu.
Stock 55 locates lower forward side of spring plate - upper on outside
of frame forward of axle.
75 rearend has housing mounts about a foot inboard of the frame
requiring xmember for upper mounts.
55 stock outboard should provide more stability but upper stock shock
mounts with single vertical stud out of shock and outside the frame
could have a tire clearance problems.
Have concerns if contemporary shocks would be available for the 55
vertical upper mount and which location would provide more stability.
All opinions welcomed,
Jim
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