Manual and Automatic Transmissions

Each GM Goodwrench remanufactured automatic transmission passes a series of rigorous tests before it goes into your GM vehicle. GM Goodwrench remanufactured transmissions are calibrated for your specific late-model GM vehicle to help maintain its original ride performance.

And new engineering enhancements are incorporated into GM Goodwrench remanufactured transmissions, to ensure years of trouble-free operation – backed by a 3 year/100,000 mile transferable limited warranty. GM remanufactured transmissions are available at thousands of GM Dealers across the U.S. and Canada.

Every new GM Parts Manual Transmission and new Transfer Case is engineered to OEM specifications, designed to fit and operate perfectly right from the start. GM Parts Manual Transmissions come with a 1 year/12,000 mile transferable limited warranty on parts and labor. GM Transfer Cases come with a 3 year/100,000 mile transferable limited warranty - so you can be assured you're getting the same quality that came with your new vehicle.

GM Parts transmission components are new and engineered to OEM specifications. From drums, housings and planetary gear to bolts, bushings and bearings, you can be assured your replacement parts are the same high quality that came on your new vehicle. All GM Parts transmission components feature a 12-month/12,000 mile transferable limited warranty.

 GM Engines and Transmissions Warranty (PDF)
 Inch Tap Drill Sizes and Decimal Equivalents (PDF)
 Strategy Based Diagnostics (PDF)
 Transmission Application Chart (PDF)
 Transmission Diagnosis (PDF)
 Transmission Identification (PDF)
 Transmission Remanufacturing Process (PDF)
 Transmission Replacement (PDF)
 GM Parts Transmissions and Transfer Cases (PDF)