Thanks for the replys.

I have already cut the three sides and we cut a little too much, so we have a gap on all three sides. I bent it so that the outside of the bed will be on the outside of the truck. It was purely for astetic reasons.

I will try the short welds letting it cool in between.

88 Xtra Cab, SAS, 35X12.50 MTR, Toyota E-Lockers front and rear, Rear seat, custom nerfs and rear bumper.