Remanufactured Transfer Case

The Zumbrota Drivetrain RTC1370G-5 is a remanufactured transfer case engineered for GM F3500 models from 1984 to 2000. This unit specifically covers the BW1370 and BW4401 transfer case models, featuring bolt-on front and rear output yokes, a 3-prong shift indicator switch, and a PTO opening. Each transfer case is rebuilt to rigorous standards. Zumbrota Drivetrain's remanufacturing process involves meticulous inspection of cases and internal components for wear such as cracks, stripped threads, shaft straightness, gear wear, and chain stretch. A specialized Hydro-blast rinse and blasting procedure is used on all parts, followed by a proprietary deep cleaning. Crucially, all internal bearings, seals, and viscous couplers are replaced with new components. The remanufactured unit undergoes thorough spun testing to verify shift-ability and ensure quiet operation. For reliable and long-lasting service, this transfer case is built to exacting standards. It comes with a 1-year limited warranty. Units are shipped in high-density plastic totes to minimize the risk of damage during transit. The transfer case is built to order, with a core charge applicable that is refundable upon return of the old unit.