Chevrolet, GMC Differential - Rear - Zumbrota Drivetrain - RAA435-1957X1-L

Rear Axle Assembly
RAA435-1957X1-L
ZPA-Rear Axle Assembly, GM 10.5" 14 bolt, 99-07 2500 Pickup, 4.56 Ratio, Grizzly
Zumbrota Performance Axle, Rear Axle Assembly, GM 10.5" 14 bolt Full Float, '99-'07 GM 2500 Pickup ('07 Classic), 4.56 Ratio, Grizzly
When your lifestyle includes the needs for stronger traction, higher speeds and heavier towing capabilities, Zumbrota Performance Axles check the box. OE replacement is fine until bigger tires, higher horsepower, a boat or trailer require a higher caliber of strength to your drivetrain. This is where aftermarket ratios, limited slip differentials, lockers and high-quality nodular iron differential covers are needed to fit the way you drive. When choosing the best products in performance upgrades, Yukon Gear and Axle products were chosen for the engineering quality and reputation to take on the heaviest in performance and reliability. At 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. Your choice of gears are fully inspected for optimal tooth contact patterns and correct rolling torque using inch-pound measurements for precise setup and longevity. Positraction and Locker choices finish the upgrade for performance. 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.
Rear Axle Assembly for GM 10.5" 14 bolt Full Float with a Grizzly in a 4.56 Ratio
Zumbrota Performance Axles are the standard in remanufacturing performance
Aftermarket gear upgrades are provided for enhanced performance for the way you drive
Custom options of Limited Slip Differentials and Lockers provide customized performance for the vehicle owner
High quality nodular steel ZPA differential covers are added to provide the highest strength protection to drivetrain internals
All tubes are inspected to ensure they are straightened to OEM specifications.
All housings are tested for surface wear and cracks.
Rear Axle Assembly for GM 10.5" 14 bolt Full Float with a Grizzly in a 4.56 Ratio
Zumbrota Performance Axles are the standard in remanufacturing performance
Aftermarket gear upgrades are provided for enhanced performance for the way you drive
Custom options of Limited Slip Differentials and Lockers provide customized performance for the vehicle owner
High quality nodular steel ZPA differential covers are added to provide the highest strength protection to drivetrain internals
All tubes are inspected to ensure they are straightened to OEM specifications.
All housings are tested for surface wear and cracks.
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
Gear Ratio: 4.56
Grade Type: Performance
Pre-Filled Oil: No

Detailed Fitment Results
Year Make Model Fitment Notes 1999 Chevrolet Silverado 2500 Ratio: 4.56; GM 14 Bolt 10.5 Inch Ring Gear, Full Float Axles, 8 Bolt Wheels, Without Quadrasteer, Zumbrota Performance Axle Fitted with a Hardcore Cover and a Yukon Grizly Locker, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 1999 GMC Sierra 2500 Ratio: 4.56; GM 14 Bolt 10.5 Inch Ring Gear, Full Float Axles, 8 Bolt Wheels, Without Quadrasteer, Zumbrota Performance Axle Fitted with a Hardcore Cover and a Yukon Grizly Locker, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2000 Chevrolet Silverado 2500 Ratio: 4.56; GM 14 Bolt 10.5 Inch Ring Gear, Full Float Axles, 8 Bolt Wheels, Without Quadrasteer, Zumbrota Performance Axle Fitted with a Hardcore Cover and a Yukon Grizly Locker, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2000 GMC Sierra 2500 Ratio: 4.56; GM 14 Bolt 10.5 Inch Ring Gear, Full Float Axles, 8 Bolt Wheels, Without Quadrasteer, Zumbrota Performance Axle Fitted with a Hardcore Cover and a Yukon Grizly Locker, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2001 Chevrolet Silverado 2500 Ratio: 4.56; GM 14 Bolt 10.5 Inch Ring Gear, Full Float Axles, 8 Bolt Wheels, Without Quadrasteer, Zumbrota Performance Axle Fitted with a Hardcore Cover and a Yukon Grizly Locker, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2001 Chevrolet Silverado 2500 HD Ratio: 4.56; GM 14 Bolt 10.5 Inch Ring Gear, Full Float Axles, 8 Bolt Wheels, Without Quadrasteer, Zumbrota Performance Axle Fitted with a Hardcore Cover and a Yukon Grizly Locker, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2001 GMC Sierra 2500 Ratio: 4.56; GM 14 Bolt 10.5 Inch Ring Gear, Full Float Axles, 8 Bolt Wheels, Without Quadrasteer, Zumbrota Performance Axle Fitted with a Hardcore Cover and a Yukon Grizly Locker, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2001 GMC Sierra 2500 HD Ratio: 4.56; GM 14 Bolt 10.5 Inch Ring Gear, Full Float Axles, 8 Bolt Wheels, Without Quadrasteer, Zumbrota Performance Axle Fitted with a Hardcore Cover and a Yukon Grizly Locker, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2002 Chevrolet Silverado 2500 Ratio: 4.56; GM 14 Bolt 10.5 Inch Ring Gear, Full Float Axles, 8 Bolt Wheels, Without Quadrasteer, Zumbrota Performance Axle Fitted with a Hardcore Cover and a Yukon Grizly Locker, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2002 Chevrolet Silverado 2500 HD Ratio: 4.56; GM 14 Bolt 10.5 Inch Ring Gear, Full Float Axles, 8 Bolt Wheels, Without Quadrasteer, Zumbrota Performance Axle Fitted with a Hardcore Cover and a Yukon Grizly Locker, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts 2…