The frame was modified on our frame table. From the front clip to the narrowed rear frame and suspension design.

Here is our "bends" for the rear frame. 4 sided laser cut 3/16 welded together.... I know its not one piece rails, but we couldnt get some of these bends out of a bender, and we fishplate/gusset everything!

The start of our rear crossmember with integrated exhaust mounts and shockwave mounts
Please ignore the crappy compressor, it was humble beginnings before we could afford proper stuff!!! But here is the rear rails installed