I designed this bed to fit the Proline ‘72 Chevy C10 Long bed body (#322700). Just adds a little more depth to it. When put into my slicer I need to scale up to  1000% so double check your scaling before printing. Dimensions are 19.4 cm long, 15.8 cm wide and 3.5 cm deep. Printed with supports under wheel wells at 100% infill. The holes for the body post are not in the design, figured you would drill holes where needed or mount body however. The screws I used to mount the bed to the body  are M2.5x8mm.