GM Canada recently donated a lot of twelve automatic transmissions for the Chevy Equinox crossover to the automotive tech department at Niagara College.

When HPP teamed with GM Performance Parts (GMPP) and Classic Restorations to mate the new THM 4L85-E SuperMatic transmission to a built-to-the-hilt SD-455, we wanted to fully document the process ...

To fix the issue, dealers will install a new transmission control module software free of charge and GM will provide a special coverage program for repairing transmissions identified as containing ...

Circle D 6L80E Transmission Upgrades - Safe Six - Tech Circle D Makes GM's Best-Ever Transmission Even Better With its Bulletproof 6L80E Six-Speed Upgrades ...