Well, lets just say I'm diving in head first and hoping for the best. 🙄
First thing, I believe that since it was a construction truck .... the damage is from heavy equipment loading/unloading on the un-paved job site. Just too many damaged areas on the bed that was not caused by a normal fender bender on the road.
So I would not use old construction equipment from the 40's to load the truck .... That would prevent the 3rd tear.
I Had high hopes of welding the one crack up, then to cut the other repaired crack and grind to original metal and repair it properly .... I spent a 1/2 day on that and quickly switched to making a patch for it.
That was getting me close but not very far ... I just could not get the right curve, even using different diameter of pipe.
This is where I ended up with my home made patch.
I was careful to repair the original edge so I did not have to recreate it, beyond my patience level.
Then I used the patch I started to make, I had to cut it into 3 pieces and install them separately.
Same time I had to put in 3 different pie cuts to get the metal to conform to all the different shapes going on here.
There is no question I'm a self taught noob that only has welded in some simple patches in the past .... this is by far the hardest I have ever done.
It is no way close to being finished, it is roughed in and now will take much patience with a hammer and dolly and tap tap tap .... weld weld weld grind grind grind ... I will get it close enough to match the existing bodywork on the truck.