Zumbrota Drivetrain RMTG56-6 Remanufactured Manual Transmission - G56 6-Speed 4x4

The Zumbrota Drivetrain RMTG56-6 is a remanufactured Mercedes-Benz G56 6-speed manual transmission built for Dodge Ram 2500 and 3500 4WD trucks equipped with the 5.7L gas engine. Engineered as a direct OEM replacement, this unit features an all-aluminum case with integral bell housing, delivering the same fit, form, and function as the original factory transmission.

Every Zumbrota manual transmission goes through a rigorous 3-step remanufacturing and inspection process to ensure reliability and OEM-level performance:

• Step 1 – Pre-Inspection: Each core is inspected for case cracks, excessive wear, and OEM-specific problems before the rebuild begins
• Step 2 – Component Measurement: All internal parts are measured to confirm they meet OEM specifications for precision fit and function
• Step 3 – Post-Build Quality Control: Shaft straightness, gear wear, and synchronizers are extensively tested to OEM standards
• Seal Replacement: All seals are replaced as part of the rebuild process
• Dyno Testing: Every unit is dynamometer tested and run through real-life operational scenarios to verify performance, shiftability, and noise levels
• Hydro-Blast Cleaning: An exclusive hydro-blast rinse and sandblasting procedure is applied to internal and external parts, followed by a proprietary deep-cleaning process

Key Specifications:

• Transmission Type: G56 6-Speed Manual
• Drive: 4x4 (4WD)
• Case Material: All Aluminum
• Bell Housing: Integral (included)
• Fluid Capacity: Approximately 6.2 quarts
• Fluid Type: ATF +4 (not pre-filled — fluid not included)
• Overdrive: Yes (ratio may vary)
• OEM Part Numbers: 52104718AB, 52104718AC
• Hollander Numbers: 400-00244, 400-00453

This transmission ships in high-density plastic totes to minimize in-transit damage. A refundable core charge applies — return your original unit upon receipt of the replacement. Backed by a 2-year/unlimited mileage warranty for 3/4-ton and lighter applications.