Main Components:

1. Rack Gear – A long metal bar with teeth.
2. Pinion Gear – A small gear attached to the steering shaft.
3. Tie Rods – Connected at both ends of the rack to the steering knuckles.
4. Seals and Boots – Protect the assembly from dirt and maintain lubrication.
5. Housing – Encloses the entire mechanism.
6. Power Steering Components (in powered systems) – Hydraulic or electric assist mechanisms.

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Types of Steering Racks:

• Manual Steering Rack – No power assistance; relies solely on driver input.
• Power Steering Rack – Assisted by hydraulic or electric mechanisms for easier turning.

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Working Principle:

• When you turn the steering wheel, the pinion gear rotates.
• The pinion engages the rack gear, moving it left or right.
• This motion is transmitted through the tie rods to the steering knuckles, turning the front wheels.
• In power steering systems, hydraulic or electric assist helps reduce effort.

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Common Symptoms of a Faulty Steering Rack Assy:

• Steering feels loose or unresponsive
• Grinding or knocking noises when turning
• Steering fluid leaks
• Uneven tire wear
• Hard or jerky steering

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Maintenance Tips:

• Check steering fluid levels regularly (for hydraulic systems).
• Replace damaged boots to prevent dirt ingress.
• Inspect tie rods and joints for wear.
• Get wheel alignment checked after replacement or repair.

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OEM vs Aftermarket Steering Racks:

• OEM (Original Equipment Manufacturer) parts offer factory-spec performance.
• Aftermarket options may vary in quality but are usually cheaper.

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Typical Applications:

• Found in passenger cars, SUVs, light trucks, and some commercial vehicles.
• Essential for precise handling, driver safety, and road feedback.