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Zumbrota Reman Complete Axle Assembly - 8.5" Ring Gear GM 1500 Pickup 3.73 Ratio 4x4 Posi LSD 1992-1994


Zumbrota Drivetrain

Model #RAA435-1513B-P

Shopper Award

Zumbrota Drivetrain has served a nationwide customer base for over 30 years. We offer a complete line of new, remanufactured, OE replacement and performance manual transmissions, Transfer cases, and differentials along with quality components for rebuilding and repair. We offer parts for a variety of makes and models of foreign and domestic passenger cars, SUV's and light duty trucks.

Any company can say they offer rear differentials. The difference is that we truly understand what it takes to provide a quality remanufactured rear differential assembly. For nearly 30 years rear differentials have been an integral part of our business. We don't cut corners, and we don't market gimmicks. Our product offering is second to none. From passenger vehicles to OHV, race cars, and even pulling trucks. We do them all.

Rear Differential Features:

  • All tubes are inspected to ensure they are straightened to OEM specifications
  • All housings are tested for surface wear and cracks
  • 100 percent inspection of all internal parts, including Ring and Pinions, Internal Gears, Clutches and Carriers
  • 100 percent replacement of bearings, seals, crush sleeves, pinion nuts and shims
  • All housings are cleaned utilizing our state of the art hydro blasting and rinsing process. This process brings all cases back to the OEM finish. Once you've seen it, you'll understand what we mean
  • Gear patterns checked during reman process to ensure optimum tooth contact for increased life of gear set
  • Correct rolling torque established using inch pound measurements for precision setup and longevity
  • Correct backlash clearance is set to assure proper gear lubrication and noise reduction
  • Note: A refundable core charge will be added to the purchase of the product
  • Rear Differential
  • 4WD
  • 3.73 Ratio
  • 8.5 Inch Ring Gear
  • GM 8.5
  • Ratio Option GT4
  • 10 Bolt Cover
  • With Posi-Traction
Fits Vehicles:
  • 1988-1998 Chevrolet K1500 GM 8.5
  • 1992-1994 Chevrolet Blazer GM 8.5
  • 1995-1999 Chevrolet Tahoe GM 8.5
  • 1988-1998 GMC K1500 GM 8.5
  • 1992-1994 GMC Jimmy GM 8.5
  • 1995-1999 GMC Yukon GM 8.5

Proposition 65

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Vehicle Engine Notes
Chevrolet Blazer

Chevrolet C/K 1500

Chevrolet Tahoe

GMC C/K 1500

GMC Yukon

In the world of remanufactured drivetrain components, there are a lot of companies to choose from, but one stands above the rest: Zumbrota Drivetrain. Located in Zumbrota, Minnesota, they offer some of the best and most affordable rebuilt drivetrain components. More specifically, they offer new, remanufactured, OE replacement, and performance manual transmissions, transfer cases, and differentials.

What separates them from other replacement drivetrain manufacturers is their dedicated staff of over 70 people, all of which have extensive drivetrain expertise. Their expertise and massive 60,000 square foot facility allow them to produce high-quality and affordable components for thousands of different automotive applications.

To put it simply, if you want the best replacement drivetrain components, Zumbrota is the best solution for you.


Standard Warranty - Standard 2 year/unlimited mileage warranty applies to all 3/4 ton and lighter applications.

No-fault Warranty - No-fault 3 year warranty is available as an optional upgrade to the standard warranty. Upgrade includes additional labor, towing, rental car, and freight charge coverage.

Limited Warranty - The 1 year/18,000 mileage warranty coverage includes commercial, farm vehicles, motorhomes and rental vehicle applications not eligible on the no-fault or standard warranty.

Standard and no-fault Warranty coverage does not extend to commercial, farm vehicles, motorhomes and rental vehicle applications.

Modified and or off-road applications are not covered by any warranty.

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