If your gears are stripped, you can replace them with new shaft and gears. Works with memory and non-memory seats.  This kit is for the either the front or rear position.
 
If your gears are stripped, you can reuse your motor and just replace the shaft and gears with this steel kit.  This kit uses a small nylon worm gear and a metal large gear mounted on a custom machined shaft.
 
You will need to use the provided front thrust washers and your factory rear thrust washer. The small thrust washer on the small worm gear must also be reused along with your factory tube nut.
 
If you want a small steel worm gear, just reuse your factory installed steel worm. Two metal gears meshing together cause a noticeable gear whine.  Watch both videos to hear the difference between a factory style worm gear and the metal one.
 
This kit has a lifetime warranty covering any gear breakage.
 
Don't forget to buyTribolith Grease ! 
 
Install Instructions