If you don't have a drill press (which I don't) I found it useful to drill in a little bit and then drop the washer in and feel around the edges to see if the depth was the same. Then I knew which way to tilt the drill to square it up. I drilled until 2 washers would sit in the hole and be flush with the surface. Also I noted that the Mar-K tech tip said to put the counterbores towards the front of the truck. In my truck (52)this orientation would result in the washer touching the bedstrip and the counterbore touching the groove in the wood. The back 4 counterbores should be towards the outside and the front 2 towards the inside on a 1/2 ton A.D. truck. Thier drilling tech tip is not application specific so you need to watch what you're doing. Good luck.

Curt B.


1952 1300 Canadian 1/2 ton restomod
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