Zumbrota Drivetrain RAA435-1936C Remanufactured Rear Axle Assembly GM 7.5" 3.73 Ratio Open Differential 4WD Non-ZR2

The Zumbrota Drivetrain RAA435-1936C is a remanufactured complete rear axle assembly built for the GM 7.5" rear end found in 1998–2005 Chevrolet S10 Blazer and GMC S15 Jimmy 4WD (Non-ZR2) applications. Featuring a 3.73 gear ratio and open differential configuration, this assembly is a direct-fit replacement engineered to restore OEM-level performance and reliability.

Remanufacturing Process:

• Each assembly is thoroughly inspected for straightness, cracks, and surface wear
• All internal components — including ring & pinions, internal gears, clutches, and carriers — are fully inspected and tested
• All bearings and seals are replaced with new components
• Gears are inspected for optimal tooth contact patterns and correct rolling torque using inch-pound measurements for precise setup and long-term durability
• Correct gear backlash is set to ensure proper lubrication and quiet operation
• Axle tubes are inspected and straightened to OEM standards of straightness
• Zumbrota's exclusive hydro-blast rinse and sandblasting procedure is used on internal and external parts, followed by a proprietary deep-cleaning process

Key Specifications:

• Axle Type: GM 7.5" Rear Axle Assembly
• Gear Ratio: 3.73
• Differential Type: Open
• Drive Type: 4WD
• Model Designation: Non-ZR2
• Part Number: RAA435-1936C

A refundable core charge applies to this remanufactured unit. Return your original axle assembly after installation to receive your core deposit back. This assembly is a direct replacement designed to bolt in without modification, making it an ideal solution for restoring drivetrain integrity on worn or damaged rear ends.