Shortening the frame on a square body Chevy

Making the 1981 C10 into a shortbox. Cutting down the frame & welding it back together.

[@earthbreaker]

Good job.. Sometimes when I have a rivet that is hard to get out. I take a palm nailer with a center punch in it and knock it out. French lake auto has a few stepsides.

[@kimber1958]

very very nice

[@angeldelarosa132]

Is there a conversion kit or will this work for a 1989 gmc sierra c1500?