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Old 06-27-2020, 11:39 AM   #43
Ben IV
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Join Date: Dec 2006
Location: Glenpool OK
Posts: 255
Re: 70 gmc DIY build

Next was the bed floor. After some research I made the decision not to splice the floor which saved me a lot of cutting and welding. The front is simple just cut 12" off the front and drill new holes in the floor and header panel. Back is a little more involved. I cut off 7 1/2 inches and removed the rear cross sill from the cut off floor to spot weld back under the floor. Then used my air hammer with a pomel to fold the extra 1/2" over like factory. If i were to do it again I think I'd leave more than a 1/2" it would probably fold over easier. I did this with the floor bolted back to the sides to ensure everything lined up.
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70 GMC custom short bed conversion
69 GMC panel truck
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