Zumbrota Drivetrain RAA435-1827C Remanufactured Rear Axle Assembly GM 7.5" 3.73 Ratio 4x4

The Zumbrota Drivetrain RAA435-1827C is a remanufactured complete rear axle assembly built for the GM 7.5" rear end found in 1995–1997 Chevrolet S10 Blazer and GMC S15 Jimmy 4x4 models with a 3.73 gear ratio. This drop-in replacement axle assembly is engineered to meet or exceed OEM specifications, delivering the fit, function, and reliability of a factory unit.

Every Zumbrota remanufactured axle assembly undergoes a comprehensive multi-stage rebuild and inspection process to ensure long-term performance and quiet operation:

• Axle tube inspection: All tubes are checked and straightened to OEM specifications for proper alignment
• Housing cleaning: Housings are hydro-blasted, rinsed, and sandblasted using a proprietary deep-cleaning process that restores cases to OEM finish
• Internal component inspection: 100% inspection of all internal parts including ring and pinion gears, internal gears, clutches, and carriers
• Bearings and seals: All bearings, seals, crush sleeves, pinion nuts, and shims are replaced
• Gear setup: Gear patterns are verified for optimal tooth contact; rolling torque is set using inch-pound measurements for precision longevity
• Gear backlash: Correct backlash is established to ensure proper lubrication and quiet operation

Key Specifications:

• Ring Gear Size: 7.5"
• Gear Ratio: 3.73:1 (RPO Code GT4)
• Drivetrain: 4x4 / 4WD
• Bolt Pattern: 5x4.75" (5x120mm)
• Lug Thread: M12x1.5
• Axle Tube Diameter: 2-5/8"

This remanufactured axle assembly is a reliable, cost-effective alternative to purchasing a new unit, backed by Zumbrota's industry-leading quality standards. A core return is required with this purchase.