Thanks 59 fleet! I read that too and will certainly check those dimensions at all mounting points. It's likely that a 73 year old truck has had parts mixed and matched several times over. In fact, there aren't any bolts in the middle cross sill mounting bracket and the PO used 2" dimensional pine for bed wood. Go figure? I guess when in Rome........
I'm getting all my parts and pieces ready for the install, which should be complete by early to mid October.
Edit: Checked the mounting points. All measured 4" without any rubber pads.
Last edited by HandyAndy; Sat Sep 19 2020 02:40 PM. Reason: Added measurements.