Bed swap
'87 has an old style stepside bed with fenders that match the front and wood floor, '87 only. Older than '87 has the same box but different fenders. Then '92-'96 have the newer stepside bed. They all use different filler necks.
As far as I know the bed is the same back to the '50s with different fenders. I cross referenced part numbers once but I do that with a lot of crap so you might want to make sure.


