9.75IRS Axle Assembly ’03-’05 Ford Expedition & Navigator 3.73 Ratio; Posi

9.75IRS Axle Replacement For over 30 years, Zumbrota Drivetrain has proudly served a nationwide customer base. We provide a comprehensive range of new, remanufactured, OE replacement, and performance manual transmissions, transfer cases, and differentials. Additionally, we offer high-quality components for rebuilding and repair. Our products are available for a wide variety of foreign and domestic passenger cars, SUVs, and light-duty trucks.

The Zumbrota Difference in Rear Differentials

While many companies claim to offer rear differentials, at Zumbrota Drivetrain, we take pride in truly understanding what it takes to deliver a top-quality remanufactured rear differential assembly. For nearly three decades, rear differentials have been a core component of our business. We don’t cut corners or use gimmicks in our marketing. Our products are second to none, with offerings for everything from passenger vehicles to OHV, race cars, and even pulling trucks.

Rear Differential Features: 9.75IRS Axle Replacement

Thorough Inspection & Quality Assurance

• Straightened Tubes: All tubes are inspected to ensure they are straightened to OEM specifications.
• Housing Testing: Every housing undergoes rigorous testing for surface wear and cracks.
• Comprehensive Part Inspection: We perform 100% inspection on all internal parts, including the ring and pinions, internal gears, clutches, and carriers.
• Complete Parts Replacement: All bearings, seals, crush sleeves, pinion nuts, and shims are replaced with new components.
• Hydro Blasting & Cleaning: Our state-of-the-art hydro blasting and rinsing process ensures that all housings are restored to an OEM finish. Once you see it, you’ll understand the difference.
• Gear Pattern Checks: During the remanufacturing process, we check the gear patterns to ensure optimal tooth contact for increased gear life.
• Precise Rolling Torque: We use inch-pound measurements to establish the correct rolling torque, ensuring precision setup and longevity.

Note: A refundable core charge will be added to the purchase of this product.

Product Details: 9.75IRS Axle Replacement

• Ratio: 3.73
• Type: Rear Differential
• Ring Gear Size: 9.75 Inch
• Model: Ford 9.75
• IRS: Yes
• Fitment: Through 11/28/04
• Posi Traction: Included

Fits Vehicles:

• 2003-2005 Ford Expedition—Ford 9.75″
• 2003-2005 Lincoln Navigator—Ford 9.75″