I have 2 cross bars that float. I believe all others were at same height and mated to frame. I also recall that there may be 2 versions of the feet on the crossbars (of different height). I suspect they changed the height as the frame height changed, otherwise bed sheetmetal was same for many years. You can buy the feet individually and weld them on to your existing bars if needed. MAR-K is who can talk you thru the specifics.

I believe the 2nd picture is of a 63 bed I used on my 66.
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20190208_145822.jpg (186.97 KB, 45 downloads)
bed wood.jpg (180.04 KB, 45 downloads)


~ HB
1966 Chevrolet K-10 | Ghost: formerly Flappy Fenders | In the Stovebolt Gallery
1962 Chevrolet C10
1962 Suburban