Anyone have a good source for replacing (rebuilding?) the electric motor for the tailgate window on my Cat? My shop manual shows how to remove it, but I've tried my go-to parts stores (Ames, OPG), as well as a slew of online sites, but no luck so far. The original motor still works (!) but is very slow and I fear will die soon anyway. I'm going to open up the tailgate for some rust remediation and glass & sash channel weatherstripping/felt replacement, so thought I might as well replace the motor now anyway.