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Shop now for Parts and Tech Info specific to 1968-1972 Chevy & GMC 4x2 and 4x4 Trucks with SM465/CH465 4 Speed Manual Transmissions. In stock. Quick shipping.
General Motors used the SM465/CH465 4 Speed Manual Transmission in full size Blazer/Jimmy, Suburbans, and 1/2 ton to 1 ton trucks from 1968 to 1991 in both 4x4 and 4x2 configurations. 465 series transmissions were also used in medium duty trucks up to 2 ton class. The SM465/CH465 manual transmissions are comparable in strength and durability to Borg Warner T98/T18/T19 and New Process NP435 4 speeds of the same era. 465 series transmissions have synchronized 2nd through 4th gears and a constant mesh 1st gear. Because 465 series transmissions use bushings instead of bearings to support 1st, 2nd, and 3rd gears, these transmissions can experience wear issues when used for extensive slow speed work such as weed spraying. However, for most applications the SM465/CH465 4 speed was and is tough and reliable.
