8.0″ AXLE ASSY ’06-’09 GM ENVOY & TRAILBLAZER 3.73 OPEN Rear Differential Assembly

GM Envoy 8.0″ Axle Zumbrota Drivetrain has been serving a nationwide customer base for over 30 years. We offer a complete range of new, remanufactured, OE replacement, and performance manual transmissions, transfer cases, and differentials, as well as quality components for rebuilding and repair. Our parts cater to various makes and models of foreign and domestic passenger cars, SUVs, and light-duty trucks.

Expertise in Rear Differentials

A Commitment to Quality

Many companies may claim to offer rear differentials, but Zumbrota Drivetrain truly understands what it takes to deliver a quality remanufactured rear differential assembly. Rear differentials have been a fundamental part of our business for nearly 30 years. We don’t cut corners and avoid gimmicks in our marketing. Our product line is second to none, catering to everything from passenger vehicles to off-highway vehicles (OHV), race cars, and even pulling trucks. We do it all.

Rear Differential Features: GM Envoy 8.0″ Axle

• Inspection of Tubes: All tubes are inspected to ensure they are straightened to OEM specifications.
• Housing Testing: All housings are rigorously tested for surface wear and cracks.
• Internal Parts Inspection: A 100% inspection of all internal parts, including ring and pinions, internal gears, clutches, and carriers.
• Complete Replacement of Components: Bearings, seals, crush sleeves, pinion nuts, and shims are fully replaced.
• Advanced Cleaning Process: Once you see the result, you’ll understand the quality we provide.

Product Details: GM Envoy 8.0″ Axle

Engine & Differential Specifications

• Engine: 4.2L
• Differential Ratio: 3.73
• Rear Differential Type: 8-Inch Ring Gear
• Model: GM 8.0
• Ratio Option: GT4
• Wheel Size: 17 Inches
• Wheelbase: 113 Inches
• Passenger Capacity: 5-Passenger
• ABS in Axle Tube: Yes
• Posi-Traction: Not Included

Compatible Vehicles

This rear differential fits the following vehicles:

• 2006-2009 Chevrolet TrailBlazer GM 8.0
• 2006-2009 GMC Envoy GM 8.0