M5R1 Manual Transmission

The Zumbrota Drivetrain M5R1 is a remanufactured manual transmission engineered for Ford Ranger and Explorer vehicles manufactured between 2001 and 2011, specifically for models equipped with the 4.0L engine and 4x4 drivetrain. This transmission boasts an all-aluminum construction for durability and weight efficiency. Key technical notes indicate that the shift lever bolts into the top cover, it features a 5-inch long shifter stub, and includes one switch for the top cover. It utilizes a reluctor wheel for accurate vehicle speed sensor readings and does not have mounts for a transfer case shifter on the tail. Zumbrota Drivetrain emphasizes a rigorous remanufacturing process with three distinct quality inspections. A pre-inspection ensures the unit is free of case cracks and excessive wear. During the remanufacturing, a second inspection verifies that all component parts meet OEM specifications. Finally, a post-build inspection confirms the transmission meets Zumbrota's strict standards. Internal components undergo a 100% inspection, including checks for gear wear, mainshaft straightness, and synchronizer performance. All transmissions are dynometer tested through numerous real-life scenarios to ensure optimal performance and reliability.