I have late '90s Chevy pick up seats with integrated seat belts, not actually installed at this point of my project but they have been installed and removed.
My seat riser was removed except for the rear cross piece. I build a frame that was welded into the floor to get the seat height close to what the assembly manual shows for the cushion height that also provides some structure to the seat mounting system. the front bolt areas needed to have spacers build up to compensate for the floor pan drop. The seat mounting bolts pass through the interior frame and will have large washers on the underside of the cab floor. My fuel tank was relocated so it does not interfere with the seats being able to move back to the rear cab wall.
Last edited by Phak1; 01/30/202412:55 AM. Reason: Changed Checy to Chevy