So I have a question about the wood blocks. There is a lot of inconsistent information out there. The blocks I bought from The Car and Truck shop measure 2.30”. The rubber pads at 0.25”. I have the original blocks and there measure 2.00”.
Yes, agreed there is a lot of inconsistent information. The real answer is a little more complicated. The stack up height of your cross sill, cross sill bracket, wood block, and rubber pad(if used) should equal the height of the metal mounting brackets of your rear sill with its rubber pad(if used). The problem is that not all cross sills are reproduced the same correct height and so some suppliers offer blocks a different size than others. As I remember the metal mounting bracket of the rear sill is 4" tall so the height of the wood block plus that of your cross sill with its mounting brackets should also be 4".
Note that this works only if your frame is not tweaked at all as all the six mounting points should be in the same plane. You may have to adjust the wood mounting blocks or add shims to the rear sill mounting if needed so that all the mounting points support the bed equally.
Mark
