Chevrolet, GMC (3.7 - 4WD/RWD) Differential - Rear - Zumbrota Drivetrain - RAA435-187

Rear Axle Assembly
RAA435-187
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Reman Axle Assembly for GM 8.0" 2009-12 Chevy Colorado and Canyon, 3.73 , Open
8.0" AXLE ASSY 09-'12 GM COLORADO and CANYON, W/ Z71 OPT, 3.73, OPEN
8.0" Axle Assembly 2009-12 GM Colorado And Canyon, RWD 3.7L With Z71 Option and 4WD, 3.73 Ratio, Open
Zumbrota Drivetrain Axle Assemblies are rebuilt to the highest quality standards of precision and reliability. Each Axle assembly is thoroughly inspected for straightness, cracks and surface wear. All internal components are fully inspected and tested including ring and pinions, internal gears, clutches and carriers. All bearings and seals are replaced. Gears are fully inspected for optimal tooth contact patterns and correct rolling torque using inch pound measurements for precise setup and longevity. Correct gear backlash is set to ensure proper gear lubrication and quiet operation. Axle tubes are inspected to ensure OEM standards of straightness. Zumbrota uses an exclusive hydro-blast rinse and sandblasting procedure on internal and external parts, followed by a proprietary shot-enticed deep cleaning, setting the standard for Axle assembly remanufacturing.
All tubes are inspected to ensure they are straightened to OEM specifications.
All housings are tested for surface wear and cracks.
100% inspection of all internal parts, including Ring and Pinion’s, Internal Gears, Clutch’s and Carrier’s
100% 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 is what brings all cases back to the OEM finish.
Correct rolling torque established using inch pound measurement’s for precision setup and longevity
Reman Axle Assembly GM 8.0" 2009-12 Chevy Colorado And Canyon, 3.73 Ratio, Open
All tubes are inspected to ensure they are straightened to OEM specifications.
All housings are tested for surface wear and cracks.
100% inspection of all internal parts, including Ring & Pinion’s, Internal Gears, Clutch’s & Carrier’s
100% 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 is what brings all cases back to the OEM finish.
Correct rolling torque established using inch pound measurement’s for precision setup and longevity
Axle Type: Semi Floating
California Proposition 65: WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
Cover Included: Yes
Fluid Included: No
Gear Ratio: 3.73

Detailed Fitment Results
Year Make Model Drive Type Fitment Notes 2009 Chevrolet Colorado 4WD Ratio: 3.73; AAM 8 Inch Ring Gear, Ratio Option GT4, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2009 Chevrolet Colorado RWD Ratio: 3.73; AAM 8 Inch Ring Gear, With Off Road Chassis Package Option Z71, Without Increased Capacity Chassis Package Option Z85, Without Sport Chassis Package Option ZQ8, Ratio Option GT4, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2009 GMC Canyon 4WD Ratio: 3.73; AAM 8 Inch Ring Gear, Ratio Option GT4, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2009 GMC Canyon RWD Ratio: 3.73; AAM 8 Inch Ring Gear, With Off Road Chassis Package Option Z71, Without Increased Capacity Chassis Package Option Z85, Without Sport Chassis Package Option ZQ8, Ratio Option GT4, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2010 Chevrolet Colorado 4WD Ratio: 3.73; AAM 8 Inch Ring Gear, Ratio Option GT4, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2010 Chevrolet Colorado RWD Ratio: 3.73; AAM 8 Inch Ring Gear, With Off Road Chassis Package Option Z71, Without Increased Capacity Chassis Package Option Z85, Without Sport Chassis Package Option ZQ8, Ratio Option GT4, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2010 GMC Canyon 4WD Ratio: 3.73; AAM 8 Inch Ring Gear, Ratio Option GT4, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2010 GMC Canyon RWD Ratio: 3.73; AAM 8 Inch Ring Gear, With Off Road Chassis Package Option Z71, Without Increased Capacity Chassis Package Option Z85, Without Sport Chassis Package Option ZQ8, Ratio Option GT4, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2011 Chevrolet Colorado 4WD Ratio: 3.73; AAM 8 Inch Ring Gear, Ratio Option GT4, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2011 Chevrolet Colorado RWD Ratio: 3.73; AAM 8 Inch Ring Gear, With Off Road Chassis Package Option Z71, Without Increased Capacity Chassis Package Option Z85, Without Sport Chassis Package Option ZQ8, Ratio Option GT4, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2011 GMC Canyon 4WD Ratio: 3.73; AAM 8 Inch Ring Gear, Ratio Option GT4, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2011 GMC Canyon RWD Ratio: 3.73; AAM 8 Inch Ring Gear, With Off Road Chassis Package Option Z71, Without Increased Capacity Chassis Package Option Z85, Without Sport Chassis Package Option ZQ8, Ratio Option GT4, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2012 Chevrolet Colorado 4WD Ratio: 3.73; AAM 8 Inch Ring Gear, Ratio Option GT4, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2012 Chevrolet Colorado RWD Ratio: 3.73; AAM 8 Inch Ring Gear, With Off Road Chassis Package Option Z71, Without Increased Capacity Chassis Package Option Z85, Without Sport Chassis Package…