Zumbrota Drivetrain RAA435-1904B-P Remanufactured Dana 70 Rear Axle Assembly 3.55 Ratio Posi Limited Slip

The Zumbrota Drivetrain RAA435-1904B-P is a professionally remanufactured complete rear axle assembly featuring a Dana 70 differential with a 3.55 gear ratio and Posi-traction limited slip differential. Designed as a direct OE replacement for 1989-1993 Dodge D250, W250, D350 SRW (Single Rear Wheel), and W350 SRW trucks, this axle assembly is built to exacting standards for reliability and performance.

Remanufacturing Process:

• Complete axle assembly thoroughly inspected for straightness, cracks, and surface wear
• All internal components fully inspected and tested including ring and pinion gears, internal gears, clutches, and carriers
• Brand new bearings, seals, crush sleeves, pinion nuts, and shims installed
• Gears inspected for optimal tooth contact patterns with correct rolling torque using precision inch-pound measurements
• Proper gear backlash set to ensure correct gear lubrication and quiet operation
• Exclusive hydro-blast rinse and sandblasting procedure on all internal and external components
• Proprietary deep cleaning process that sets the industry standard

Key Specifications:

• Axle Type: Dana 70 rear differential
• Gear Ratio: 3.55:1
• Differential Type: Posi limited slip differential for improved traction
• Ring Gear Size: 10.5 inches
• Bolt Pattern: 10-bolt cover design
• Configuration: Single Rear Wheel (SRW) applications

Each Zumbrota axle assembly is remanufactured by skilled technicians with decades of combined experience, ensuring every unit meets rigorous quality standards before shipment. This complete assembly is ready to install and backed by Zumbrota's commitment to precision engineering and reliability.