PWR 42-2985 Rack and Pinion Assembly

Reliable Hydraulic Rack and Pinion Assembly for Chevrolet and GMC

The PWR 42-2985 hydraulic rack and pinion assembly is engineered for precise steering control in Chevrolet and GMC trucks. Designed specifically for models like the Silverado 1500, Sierra 1500, and Cheyenne, this component ensures consistent performance and durability.

• Hydraulic type rack and pinion assembly
• Includes inner tie rods and gaskets/seals
• Four mounting holes for secure installation
• End-to-end length of 1390 mm for exact fitment
• Steering input shaft diameter of 16.8 mm
• Female inlet and outlet line fittings with 12 mm diameter
• Total turns lock to lock: 3.2 for responsive steering

Detailed Product Features and Specifications

This PWR rack and pinion assembly (part number 42-2985) is a hydraulic type designed to replace the steering gear in select Chevrolet and GMC trucks. It comes with inner tie rods and necessary gaskets or seals to maintain hydraulic integrity. The assembly features four mounting holes, ensuring a secure and stable fit without included mounting brackets or hardware. The end-to-end length measures 1390 mm, matching factory specifications for Silverado 1500, Sierra 1500, and Cheyenne models. The steering input shaft diameter is 16.8 mm, compatible with original steering components. Both inlet and outlet line fittings are female with a 12 mm diameter, facilitating proper hydraulic fluid flow. The total turns lock to lock is 3.2, providing a balance between steering responsiveness and control.

Compatible Vehicles and Applications

• Chevrolet Silverado 1500
• GMC Sierra 1500
• Chevrolet Cheyenne

This rack and pinion assembly is intended for use in hydraulic steering systems on these specific truck models, addressing common steering issues and restoring factory steering performance.

Common Steering Issues Addressed

• Excessive play or looseness in steering
• Leaking seals causing hydraulic fluid loss
• Difficulty in steering or uneven steering response
• Worn or damaged inner tie rods affecting alignment
• Noise or vibration during steering maneuvers

Installation Notes and Tips

Installation requires removal of the existing rack and pinion assembly. Note that mounting hardware and brackets are not included, so reusing original components or sourcing new hardware is necessary. Ensure all hydraulic connections use the correct female 12 mm fittings to prevent leaks. Verify the steering input shaft diameter matches 16.8 mm for compatibility. Proper alignment and torque specifications should be followed to maintain steering performance and safety.

Quality Assurance and Warranty

The PWR 42-2985 rack and pinion assembly is manufactured to meet OEM standards for fit and function. It includes gaskets and seals to ensure hydraulic system integrity. While specific warranty details are not provided, PWR products typically undergo rigorous quality control to ensure reliability in demanding automotive applications.