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  See more parts for Chevrolet Silverado 3500
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Zumbrota Drivetrain 11.5" Rear Differential Axle Assembly for GM 1 Ton DRW 3.73 Gear Ratio - RAA435-281A-P

If you're in the market for a solid rear differential axle assembly, the Zumbrota Drivetrain Axle Assembly is definitely worth a look. I've had my fair share of experiences with different axle assemblies, and I can tell you, this one stands out for its quality and reliability. Each unit is rebuilt with a focus on precision, so you know you're getting something that’s not just slapped together.

What I really appreciate is the thorough inspection process. They check for straightness, cracks, and surface wear, which gives me peace of mind knowing that I’m not installing something that’s gonna fail on me down the road. All the internal components—think ring & pinions, internal gears, clutches, and carriers—are meticulously inspected and tested. They even replace all the bearings and seals, which is a huge plus because that’s where a lot of issues can crop up.

When it comes to the gears, they don’t just throw them in there and hope for the best. They’re fully inspected for optimal tooth contact patterns, and they use inch-pound measurements to ensure the setup is spot on for longevity. The correct gear backlash is set up, ensuring that the lubrication is just right and the operation is as quiet as possible. Plus, the axle tubes are inspected to meet OEM standards for straightness, so you know it’s built to last.

One of the standout features is the exclusive hydro-blast rinse and sandblasting procedure they use on both internal and external parts. After that, there’s a proprietary shot-enticed deep cleaning process that really sets the bar high for axle assembly remanufacturing.

  • Fits: General Motors 1 Ton DRW
  • Type: Rear Differential Axle Assembly
  • Gear Ratio: 3.73
  • Configuration: Cab Chassis
  • Positraction: Yes, without the wide truck

As for the specs, here’s what you need to know:

  • Axle Type: Full Floating
  • Cover Included: Yes
  • Fluid Included: No

It’s a perfect fit for the Chevrolet Silverado 3500 HD and GMC Sierra 3500 HD from 2011 to 2014. So if you’re looking to keep your heavy-duty truck running smoothly, this axle assembly might just be the upgrade you need.

The shipping fee quoted in the shopping cart includes transportation of the product to your location as well as the return of your core to the manufacturer. If you opt to send your core in advance, we offer a 50% refund on the shipping cost. However, please note that this option may prolong the overall process, so we generally advise against it.

Other Part Numbers:
Zumbrota Drivetrain #435-00281A

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle
2011-2014
 Chevrolet Silverado 3500
2011-2014
 GMC Sierra

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.

WARRANTY INFO

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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