I started on the rear body mounts this evening. This is the main portion that will be welded to the truck floor pan. It will have a couple of additional supports added before it is all said and done. All the up's and downs you see in this part match the profile of the floor pan. The tubing you see here is 2 1/2" with 1/8" wall.
Lots of getting up and down, card board, tape, and tons of measurements!
I should have a couple more pics once it gets final mounted and welded in.
This will all make sense once you see it in place and welded in.
Stay tuned!