Id guide

GM

4L60 Transmission

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Produced from 1982 to 1993, the GM 4L60 is a 4-speed, hydraulically-controlled transmission known as the Turbo Hydramatic 700-R4 until a name change in 1989. The unit was used in dozens of Chevy/GMC light-duty, RWD passenger cars and pickup/SUVs/vans including the Impala, Blazer, Jimmy, Suburban and S-10. Performance vehicles like the Corvette, Camaro/Pontiac Firebird, Syclone and Typhoon also shipped with the 4L60, and it remains a popular unit for swaps into other vehicles, especially when doing street/strip performance builds.