Zumbrota Drivetrain RAA435-1965A Remanufactured Rear Axle Assembly GM 7.5" 3.08 Ratio 2WD with Chassis Package

The Zumbrota Drivetrain RAA435-1965A is a remanufactured rear complete axle assembly built for the GM 7.5-inch 10-bolt rear end. Engineered for 2WD applications with a 3.08 gear ratio, this drop-in replacement assembly includes the chassis package and is designed to restore OEM-level drivetrain performance and reliability.

Zumbrota Remanufacturing Process:

• Full internal inspection: All components — including ring & pinions, internal gears, clutches, and carriers — are 100% inspected and tested
• Bearings and seals replaced: All bearings, seals, crush sleeves, pinion nuts, and shims are replaced as part of the reman process
• Gear pattern verification: Gears are inspected for optimal tooth contact patterns and correct rolling torque using inch-pound measurements for precision setup and long service life
• Backlash set to spec: Correct gear backlash is established to ensure proper lubrication and quiet, smooth operation
• Tube straightness verified: Axle tubes are inspected to confirm OEM standards of straightness
• Proprietary deep cleaning: An exclusive hydro-blast rinse and sandblasting procedure on all internal and external parts, followed by shot-enticed deep cleaning, brings the housing back to OEM finish standards

Key Specifications:

• Axle Type: GM 7.5-inch (10-bolt) rear axle assembly
• Gear Ratio: 3.08
• Drive Configuration: 2WD
• Includes: Chassis package
• Manufacturer Part Number (MPN): RAA435-1965A

Zumbrota Drivetrain is headquartered in Zumbrota, Minnesota and has been serving the automotive drivetrain market for over 30 years. Their remanufactured axle assemblies are backed by a standard 2-year/unlimited mileage warranty for 3/4-ton and lighter applications. A core return is required with this purchase.