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GM Technical Information and Diagrams: TH350
GM 3-Speed RWD Transmission
1969-1986
Discontinued in 1986, the TH350 was GM's most common 3-speed RWD
transmission in it's time. Replaced by the 700R4/4L60E in most
applications.
Performance upgrades are readily available & inexpensive. The TH350
came in both a lockup version after 1980 (350C) and a non-lockup
version (350). |