HM290 5-Speed Manual Transmission

The Zumbrota Drivetrain RMT290C-14 is a remanufactured HM290 5-speed manual transmission specifically engineered for 1999-2007 Chevrolet Silverado and GMC Sierra 1500 4x4 trucks. This transmission undergoes a rigorous three-step inspection and remanufacturing process. Initial inspection checks for case cracks, excessive wear, and OEM-specific issues. Component parts are then measured to ensure they meet OEM specifications. The final stage involves meticulous assembly and testing, including checks for shaft straightness, gear wear, and synchronizer function, all to meet exacting quality standards. Seals are replaced, and the unit is dyno-tested to verify operation, shiftability, and noise levels. Key features include an integral bell housing for durability, a single rail internal shift mechanism, and an internal slave cylinder. It has undergone exclusive hydro-blast rinsing and sandblasting procedures on internal and external parts, followed by proprietary deep cleaning. This unit is compatible with GM 99-07 Silverado & Sierra 1500 4x4 models. It is built to order and may have specific shipping requirements.