Getrag HM290 5-Speed Manual Transmission Assembly

The Zumbrota Drivetrain RMT290C-10 is a remanufactured manual transmission assembly designed to replace the original unit in select 1996-1997 Chevrolet and GMC 4WD trucks and SUVs. This transmission features the Getrag HM290 gearbox, known for its durability and performance in 5-speed applications. Built for vehicles with the 4.3L 6-cylinder engine, this transmission includes an integral bell housing and an internal slave cylinder for a cleaner installation. The single rail internal shift mechanism ensures smooth and precise gear changes. Each Zumbrota transmission undergoes a rigorous three-step quality inspection process, including pre-inspections to identify core issues, in-process checks for OEM specification compliance, and a final post-build inspection. Furthermore, every unit is dyno-tested to verify operation, shiftability, and real-life scenario performance. The remanufacturing process includes 100% replacement of common wear components such as seals and bearings. Housings and top covers are restored to an OEM finish using a state-of-the-art hydro blasting and rinsing process. Internal parts are inspected for wear, and the mainshaft is tested for straightness. Units are shipped in high-density plastic totes to prevent damage during transit. This remanufactured transmission assembly is specifically compatible with the following models: 1996-1997 Chevrolet Blazer 4WD, 1996-1997 Chevrolet S10 Pickup 4WD, 1996-1997 GMC Jimmy 4WD, and 1996-1997 GMC Sonoma 4WD. It is also identified by Hollander numbers 400-04311 and 400-04313.