The Hydra-Matic 6T70 (production code M7U) is a six-speed automatic transmission produced by General Motors for use in front-wheel-drive-based all-wheel-drive vehicles with a transverse powertrain orientation. Developed in-house by General Motors, the Hydra-Matic 6T70 is part of the 6TXX family of transmissions that succeeded the 5TXX family. The 6T70 is more capable and robust than GM’s 6T50, 6T45, 6T40, and 6T30 gearboxes.
The 6T70/6T75 improved fuel economy by an average of 4%, while performance was improved 8% on average over their 4-speed counterparts. The 6T70/6T75 share the same architecture and most of the parts are the same. The primary difference is the 6T75; a heavy-duty version of the 6T70
6T70, 6T75, 6T80
Gaskets:
- PART # 135109 - Pan Gasket
Rubber Components:
- PART # 135134 - Pump to Case Seal
Seals:
Steel & Pressure Plates:
- PART # 135366K - Steel Module
Filters:
- PART # 135558 - Filter
We will continue adding parts as they become available
