Dorman 951-056 Wheel Bearing and Hub Assembly - Front

Reliable Wheel Bearing and Hub Assembly for GM SUVs

The Dorman 951-056 wheel bearing and hub assembly is engineered to restore proper driveline function for select Buick, Chevrolet, GMC, Oldsmobile, and Saab models. Designed with integrated ABS sensor technology, this assembly ensures accurate wheel speed monitoring and smooth operation for vehicles like the Chevrolet Trailblazer and GMC Envoy.

Key Features of the Dorman 951-056 Wheel Hub Assembly

• 27 spline quantity for precise drivetrain engagement
• Includes flange with a triangular shape and 3 bolt holes
• Wheel stud size of 12 mm with 6 studs included
• Wheel pilot diameter of 77.8 mm and brake pilot diameter of 79 mm
• Hub pilot diameter measures 91.9 mm for secure fitment
• Equipped with an ABS sensor and connector (female connector, male terminal)
• Flange offset of 46.9 mm and bolt circle diameter of 127 mm

Detailed Description of the Dorman 951-056 Assembly

This wheel bearing and hub assembly is designed to meet the specific requirements of mid-2000s GM SUVs and trucks, including the Buick Rainier, Chevrolet SSR, GMC Envoy XL, and Oldsmobile Bravada. The integrated ABS sensor supports anti-lock braking system functionality, providing reliable wheel speed data to the vehicle’s control module. The flange’s triangular shape and 3 bolt holes ensure a secure connection to the axle, while the included wheel studs simplify wheel mounting. The precise pilot diameters for the wheel, brake, and hub guarantee proper alignment and fitment, reducing vibration and wear.

Common Applications and Problem Resolution

• Replaces worn or noisy wheel bearings causing rough ride or vibration
• Restores ABS sensor functionality to correct warning lights or braking issues
• Fixes loose or damaged wheel studs to improve wheel security
• Addresses hub assembly wear that leads to uneven tire wear or steering problems
• Resolves flange damage or misalignment affecting driveline performance

Installation Notes and Tips

Ensure the vehicle is securely lifted and supported before beginning installation. Verify the flange bolt hole diameter and bolt circle diameter match the vehicle specifications. Handle the ABS sensor connector carefully to avoid damage. Torque wheel studs to manufacturer specifications and confirm proper seating of the hub pilot to prevent premature wear.

Quality Assurance and Warranty

Dorman wheel bearing and hub assemblies are manufactured to meet or exceed OEM standards. The 951-056 part includes a pre-installed ABS sensor and wheel studs for convenience. While specific warranty details are not provided here, Dorman products typically come with a limited warranty covering defects in materials and workmanship.