I have these Wedge brand bucket seat tracks with sliders for GM (and many aftermarket seats including Procar). Look them up on the net, if you're not familiar. I had (1) sat in the car for mockup, and then found a deal on some power seats I could not refuse. The other seat bracket has never been out of the box. Being that I had one installed ( I actually elongated a hole for a better fit - tolerance you know...) I am selling these as used parts w/ no warranty. I paid $270 for this stuff. $100 for everything + ACTUAL shipping charges, or pick up in Houston, Texas. I'll let the pics speak for themselves.