Hello all, I was looking through LMC Truck's catalog and saw the med mounting kit comes with 4 blocks and 6 rubber pads. When I took my bed off there werent any blocks anywhere to be seen. Where would these 4 blocks go? I only see three sets of holes in the top of the frame where thye bed can mount. The very front by the cab, a set of holes in the very back of the frame, and a set of holes about 1 foor in front of those.

Thanks in advance, Dave