I have had my 51 3/4 ton chevy for a little over a month so this is all very new and very interesting. What I don't get is the mounting kits available on line look like wood blocks with a hole drilled through, I can do that. Are they all the same height or do you need to set your frame level and install differant size blocks so the bed is parrallel to the frame? Are the pads for the blocks to reduce squeaking? Martin
