Tonight I finished grinding out the right box top side and then promptly dropped it and smashed the end of the top tube from a circle shape into a 1/2 circle. [censored] me off. So I had to beat it back into shape with a BFH and a rounded piece of sucker rod.this slowed me down considerably. I then began mock-up on the frame to check fit and see if things lined up. I have to remove the rear sill and shave about 1/8” off the ends in order to get my holes to line up perfectly. The box is 1/8” wide because of the sill width and consequently the holes for the sill to bed side are out about this distance. I also mocked up the front sill so I can prep my home made front panel for the lower mounting lip. I will just plug weld a piece of angle iron onto it with holes drilled to bolt into the cross sill. Then I can mock up tailgate and begin bed wood work I suppose. We will see if those C10 parts come in!

Frame/Sheet: 12
Box: 18
Total: 30

https://photos.app.goo.gl/uXDYmWhsVffZun2c6

If anybody is interested, in the picture that shows the box from the direct rear you can notice that the top tube is plugged on the right. This is simply a 1-5/8”frost plug reversed and rubber hammered into place. I have tried this on an actual original Chevy box side and it will work there as well. It is super cheap, fast, easy, and I think it looks pretty good. I will drill a small hole and put a tiny plug weld into the tube so it never backs out.

Last edited by Phak1; 04/03/2025 9:45 PM.

1970 Chevrolet C10
Grandpa's -- My first truck -- In progress to shiny
Follow the build in the Project Journal
1950 Chevrolet 1-Ton Dually
"Ole Red Girl"
In the Stovebolt Gallery
More pictures here
1951 GMC 9430 1 ton dually--Shiny! | 1972 Chevrolet C20- Rusty- the puzzle box lid for the C10 | 1962 AMC Rambler American- my wife's
Parts trucks-
1951 GMC 9300 | 1951-GMC 9430 | 1951- Chevrolet 1300