Remanufactured 6-Speed Manual Transmission

The Zumbrota Drivetrain S6-S650F is a remanufactured 6-speed manual transmission meticulously built for 1999-2000 Ford F250, F350, F450, and F550 Super Duty pickups equipped with the 7.3L diesel engine and a 2WD drivetrain. This transmission is remanufactured to the highest quality standards through a comprehensive 3-step inspection process. It begins with a pre-inspection to identify case cracks, excessive wear, and other OEM-specific problems. The second step involves measuring component parts to ensure they meet OEM specifications, while the third step guarantees each unit is built to Zumbrota's exacting quality standards. Critical touchpoints like shaft straightness, gear wear, and synchronizers are extensively tested against OEM specifications. The remanufacturing process includes the replacement of all seals. Furthermore, each transmission is dyno-tested to verify operation, shiftability, and noise levels, ensuring reliability. Zumbrota utilizes an exclusive hydro-blast rinse and sandblasting procedure on both internal and external parts, followed by proprietary shot-enticed deep cleaning, setting a benchmark for manual transmission remanufacturing. Key specifications include a gear ratio of 5.79-0.72 and a ZF built case with integral bell housing. The transmission also features an electronic speedometer. Identification numbers include 1319-050-004, 1319-050-005, 1319-050-022, F81A-CD, F81A-CE, F81A-CF, F81A-CG, and F81Z-CERM, with a Hollander number of 400-03383. This transmission comes with a 1-year limited warranty.