[LMH]

Proper use of fasteners and build practices is utmost! Converting my Hurricane to IRS, where the IRS unit bolted on the frame, I enlarged the holes and welded in tubes for the mounting bolts to pass through. That allowed the bolts to be tightened to torque spec w/o squeezing or dimpling the sides of the box frame. It was a lot of work but I've seen "loose" parts on cars because of "get it together" build practices and poor workmanship. Safety and quality go hand in hand.
Larry