I'm pretty sure the blocks in the kit I bought were 2" tall and came with a pair of 1/8" rubber pads for top and bottom resulting in an overall height of 2 1/4". Aluminum or plastic are acceptable substitutes and correct height will be dependent on splash apron/bedside gap. The blocks wern't quite square either and had a longer side tha should run parallel to the framerail.

Curt B.


1952 1300 Canadian 1/2 ton restomod
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