I get 4-3/8" from the top of the frame to the bottom of the wood in front and 4-1/4" at the back. Add 3/4" for the wood thickness to get to the bottom of the angle strips. That should get you close.

As far as the tabs at the stake pockets, those are problematic and hard to get right without removing the stake pocket. They take a beating. They should be bent vertically downward. Here's a pic of the best one of mine. I had to replace that stake pocket, so was able to get the tab close to the right position.

[on edit] The lead shouldn't be a problem, you can either remove it and use filler in place of it or just use filler over it.
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Last edited by klhansen; 08/25/2024 11:05 PM.

Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.