Fix 2007-2014 GM truck/suburban FWD/AFT seat gears 

Brass replacement gears can be purchased at www.gruvenparts.com/gm-truck-...
You can also access a DIY pdf there with the list of tools needed for this job.
If you need to fix the height adjustment gears instead, parts can be purchased at gruvenparts.com. Check out this video for instructions • GMC/Chevrolet Power Se...