8.8IRS Posi 3.73 Axle Zumbrota Drivetrain has proudly served a nationwide customer base for over 30 years. We provide a comprehensive selection of new, remanufactured, OE replacement and performance manual transmissions, transfer cases, and differentials. Our high-quality components support rebuilding and repair for a variety of foreign and domestic passenger cars, SUVs, and light-duty trucks.
Rear Differential Expertise
The Zumbrota Difference
Many companies claim to offer rear differentials, but at Zumbrota Drivetrain, we truly understand what it takes to produce a high-quality remanufactured rear differential assembly. For nearly 30 years, rear differentials have been a core part of our business. We don’t cut corners, and we don’t rely on gimmicks. We do it all.
Rear Differential Features: 8.8IRS Posi 3.73 Axle
- Tube Inspection: All tubes are examined and straightened to meet OEM specifications.
- Housing Testing – Each housing undergoes rigorous testing for surface wear and cracks.
- Comprehensive Internal Parts Inspection – We perform a 100% inspection of all internal components, including ring and pinions, internal gears, clutches, and carriers.
- Complete Component Replacement – All bearings, seals, crush sleeves, pinion nuts, and shims are replaced to ensure durability and performance.
- Advanced Cleaning Process – Utilizing state-of-the-art hydro blasting and rinsing technology, we restore housings to their original OEM finish. Once you see it, you’ll understand the difference.
- Gear Pattern Optimization – We check gear patterns during the remanufacturing process to ensure optimal tooth contact, which increases the lifespan of the gear set.
- Precision Rolling Torque – We establish correct rolling torque using inch-pound measurements for precise setup and enhanced longevity.
Rear Differential Specifications
Product Details: 8.8IRS Posi 3.73 Axle
- Ratio: 4.11
- Differential Type: Rear Differential
- Ring Gear Size: 8.8 Inch
- Model: Ford 8.8
- Braking System: Rear Disc Brakes
- Traction Type: Posi Traction
Vehicle Compatibility
- 2010-2011 Ford Ranger – Ford 8.8
