back to work on the bed. this time with the new parts. here you can see how the bed side flows with the contours of the cab, keeping an even 3/16" gap. the shortened bed sides allowed me to have the extra material to close up the gap from over 2" to a mere 3/16". here is the new inner wheel tub. i found that the 1960-66 C10 wheel tubs had the nice contours that would work really well with the '53. the inner tub is even with the frame rail. no need to make the bed smaller that i need. testing the tub with the wooden floor board. added all of the bed cross sills, but in different locations than stock. since the frame rails weren't raised up or notched, they fit perfectly under the bed floor and stock height. here is the rear cross sill. i had to move the mounting pockets inward since i narrowed the frame 14". the tub and side fully welded.