My seats back and forward weren’t working. I could hear the motor click for a fraction of a second but no movement. Bought the new gears and took it all apart. The gear assemblies were all froze up where the grease had dried out and hardened so...
I just bought and installed ones off eBay from Lift Support Depot. So far I like them. No modification needed, Strong lift, and lifts it high so good clearance. I’m a hair over 6 and don’t have to duck. $36 for the pair.