If you're looking for a solid axle assembly that won’t let you down, check out the Zumbrota Drivetrain Axle Assemblies. These things are rebuilt with a real focus on quality and reliability. Each unit goes through a thorough inspection process—think straightness checks, crack detection, and surface wear evaluations. It’s not just about slapping parts together; they inspect every internal component, including the ring and pinions, internal gears, clutches, and carriers, to make sure everything’s up to snuff.

All the bearings and seals are replaced, so you know you’re getting fresh components. They don’t skimp on the details either; the gears are carefully checked for optimal tooth contact patterns and rolling torque. We’re talking precise setups that help ensure longevity. Plus, they set the correct gear backlash to keep everything running smoothly and quietly. The axle tubes? Yep, those are inspected too, ensuring they meet OEM standards for straightness.

One of the standout features of Zumbrota is their cleaning process. They use a unique hydro-blast rinse along with sandblasting for both the internal and external parts, followed by a proprietary deep cleaning method. This is what really brings the assemblies back to an OEM finish. And when you get your assembly, it’ll be shipped in high-density plastic totes, which helps prevent any damage during transit.

Features:

• Units are shipped in high-density plastic totes, reducing the risk of in-transit damage.
• All housings undergo rigorous testing for surface wear and cracks.
• Every internal part is 100% inspected, including ring & pinions, internal gears, clutches, and carriers.
• All bearings, seals, crush sleeves, pinion nuts, and shims are replaced.
• Housings are cleaned using a state-of-the-art hydro blasting and rinsing process to restore them to OEM finish.
• Correct rolling torque is established using inch-pound measurements for a precise setup and extended longevity.

Fitment:

• Chevrolet Colorado Z71 4WD 2004-2005
• Chevrolet Colorado Z71 LS 4WD 2004-2005
• Chevrolet Colorado Z85 4WD 2004-2005
• Chevrolet Colorado Z85 LS 4WD 2004-2005
• Chevrolet Colorado LS 4WD 2004-2008
• Chevrolet Colorado Base 4WD 2004
• Chevrolet Colorado Sport 4WD 2005
• Chevrolet Colorado Sport LS 4WD 2005
• Chevrolet Colorado LT 4WD 2006-2012
• Chevrolet Colorado WT 4WD 2006-2012
• GMC Canyon Z71 Fleet 4WD 2004-2005
• GMC Canyon Z71 SL 4WD 2004-2005
• GMC Canyon Z71 SLE 4WD 2004-2005
• GMC Canyon Z85 SL 4WD 2004-2005
• GMC Canyon Z85 SLE 4WD 2004-2005
• GMC Canyon SLE 4WD 2004-2012
• GMC Canyon SL 4WD 2004-2008
• GMC Canyon SLT 4WD 2006-2012
• GMC Canyon WT 4WD 2006-2012

So, if you’re driving a Chevrolet Colorado or GMC Canyon from 2004 to 2012, this Zumbrota axle assembly is a smart choice. With a 4.11 gear ratio and all those fresh components, you’ll be back on the road with confidence. No more worrying about your axle giving out on you—this one's built to last.