I exchanged emails with Mar-K and basically was told - the shocks should not present a problem but relocating the "floating" cross sills also does not present any problems.

My plan going forward is to move the 3rd cross sill back one set of mounting holes which will put it approximately midway between the 2nd and 4th frame mounted cross sills and mount the remaining floating cross sill between the 4th and rear cross sills. I will measure the respective locations and make notes on my installation instructions so that when I am assembling the bed after paint (off the truck) that I get them in the correct locations.

I will update this thread with my final dimensions in case anyone wants to do the same.

1949/50 3600 Project
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