Posted by Clint Dixon [172.70.178.243] on Friday, June 17, 2022 at 10:17:25 :
In Reply to: Frame posted by Todd Miller [172.70.210.97] on Thursday, June 16, 2022 at 20:26:31 :
It looks like what you are going to need to do is to find a good rear half "replacement" of a complete frame. Torch cut the replacement rails about 12-inches ahead of the rear spring hangers and then precision cut these torched ends to about 4 to 8 inches ahead of the hole that is in the frame rails directly behind the upper shackle pin.
Then precision cut your old existing frame rails at the same exact dimension ahead of the hole that you cut your "replacement" rails. Weld the new "replacement" rails, rear crossmember, and spring hangers as one complete assembly to the ends of your precision cut existing rails.
I have seen this done on a Power-Wagon. It worked out well. But, you have to have very accurate measurements from a common point on both the old and new parts. I.e. "precision". All cuts need to be perpendicular to the frame rails and should be at least saw cuts. Even better would be milled surfaces.
Of course, the standing rule is never to weld on a frame rail. This method goes against that rule in a big way. But if the welds are professional, and you don't overload the truck, you may be okay.
Or, even better, replace the whole frame.
Junior