The power steering gear box for a 1989-1991 Toyota 4Runner or 1985-1991 Toyota Pickup (with 2.4L or 3.0L engine) is a crucial component of the vehicle’s steering system. It converts the rotational movement of the steering wheel into the angular movement of the front wheels, allowing for easier and more responsive steering. These gearboxes are designed to reduce steering effort and improve driving experience.
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Steering Input Conversion:
The gearbox translates the driver’s steering input (turning the steering wheel) into the movement of the front wheels.
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Steering Effort Reduction:
It provides mechanical advantage, making it easier for the driver to steer the vehicle, especially at lower speeds or when maneuvering.
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Improved Steering Feel:
Modern gearboxes are designed to offer a more precise and responsive steering feel, enhancing driver control.
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Durability and Reliability:
High-quality materials and construction ensure the gearbox can withstand the forces involved in steering and provide long-lasting performance.
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Compatibility:
The specific gearbox model should be compatible with the vehicle’s year, model, and engine size for proper fit and function.
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Replacement:
If your vehicle experiences issues like clunking noises while turning, excessive play in the steering wheel, or fluid leaks, it might indicate a problem with the steering gearbox, requiring replacement.
- For Toyota 4Runner (1989-1991) and Toyota Pickup (1985-1991), the power steering gear box is a key part of the steering system.
- Common part numbers for these gearboxes include 4411035070, 4411035190, and 27-8473,.
- Some gearboxes are remanufactured, offering a cost-effective solution while maintaining quality standards, according to Parts Geek.
A power steering gear box for a 1989-1991 Toyota 4Runner or 1985-1991 Toyota Pickup typically features a steel and aluminum construction with a black finish. It is designed as a direct replacement for the original part, with specifications like an input shaft length of 0.69 inches and three mounting holes. The gear box is compatible with both 2.4L and 3.0L engines, and with both RWD and 4WD configurations.
- Compatibility: Toyota 4Runner (1989-1991) and Toyota Pickup (1985-1991).
- Engine Compatibility: 2.4L and 3.0L naturally aspirated engines.
- Drive Type Compatibility: Both RWD and 4WD.
- Material: Steel and aluminum construction.
- Finish: Black.
- Input Shaft Length: 0.69 inches.
- Number of Mounting Holes: 3.
- OEM Part Numbers: 4411035070, 4411035190, 27-8473.
- Pressure Port Thread Size: M16x1.5.
- Return Port Thread Size: M17x1.5 (according to some sellers).
- Total Turns Lock to Lock: 4.38 (according to some sellers).
- Warranty: Some sellers offer a 2-year warranty.
- Some sellers specify that the gear box is a premium replacement part and is designed to withstand the rigors of the road.
- It is important to verify compatibility with your specific vehicle year and engine before purchase.
- Professional installation is recommended by some sellers.
- Some sellers mention the gear box is an ideal solution for issues like clunking while turning, shaking steering wheel, excessive free play in steering, and leaking power steering fluid.
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