GM 14070359 Steering Knuckle Left Driver S15

( Brand: Gm ), ( Manufacturer Part Number: 14070359 ), ( Type: Steering Knuckle ), ( Placement On Vehicle: Left ), ( Interchange Notes: 4x4; Left )

Review GM Chevrolet Steering Knuckle Left Driver Side Oem Gmc S15 fits S10 4WD 1984–1989

The **GM 14070359 84-89 Chevrolet S10 / GMC S15 Left Driver-Side Steering Knuckle (4WD)** is a high-quality, direct-fit replacement part designed specifically for the iconic 1984 through 1989 Chevrolet S10 and GMC S15 four-wheel-drive (4WD) models. This forged steel steering knuckle serves as a critical component of the vehicle s front suspension system, providing the pivot point for the wheel assembly while supporting the wheel hub, spindle, and tie rod ends. Crafted to meet or exceed OEM specifications, this knuckle is engineered to ensure precise alignment, smooth handling, and reliable durability, even under demanding off-road or heavy-duty conditions. Its robust construction helps maintain proper wheel alignment, reduces unnecessary wear on tires and suspension components, and minimizes the risk of premature failure in critical areas like the ball joints, control arms, and steering linkages. Whether replacing a worn-out original part or upgrading for enhanced performance, this steering knuckle is a dependable choice for mechanics, DIY enthusiasts, and fleet operators seeking long-lasting performance in their classic or modernized 4WD trucks. Its compatibility with the GM 4WD drivetrain ensures seamless integration with the axle housing, sway bar, and other suspension elements, making it an essential upgrade for maintaining optimal vehicle stability and control.

### **Pros and Cons of buying a GM 14070359 84 89 Chevrolet S10/GMC S15 Steering Knuckle (Left, Driver Side, 4WD)**

1. **Compatibility** This part is designed specifically for the 1984-1989 Chevrolet S10 and GMC S15, ensuring a proper fit for 4WD models. It is a direct replacement for the original steering knuckle, reducing the risk of alignment or handling issues.

2. **Durability** Steering knuckles are critical suspension components that support the wheel hub, bearing, and ball joint. A high-quality aftermarket or OEM replacement should last as long as the original if properly installed and maintained.

3. **Performance Benefits** A functioning steering knuckle ensures smooth wheel movement, reduces play in the steering, and helps maintain proper wheel alignment. This can improve handling, tire wear, and overall driving comfort.

4. **Ease of Installation** While suspension work can be labor-intensive, this part is relatively straightforward for those with mechanical experience. It requires removing the wheel, disconnecting the ball joint, and replacing the knuckle before reattaching components.

5. **Cost-Effective Alternative to Full Suspension Rebuild** If only the steering knuckle is worn or damaged, replacing just this part is cheaper than overhauling the entire suspension system.

6. **Availability of Genuine vs. Aftermarket Options** Depending on the source, you may find OEM (original equipment manufacturer) parts or high-quality aftermarket alternatives. Aftermarket parts can sometimes be more affordable without sacrificing quality.

7. **Prevents Further Damage** A failing steering knuckle can lead to wheel misalignment, excessive wear on tires, or even wheel detachment in extreme cases. Replacing it proactively avoids more costly repairs down the line.

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1. **Potential for Counterfeit or Low-Quality Parts** If purchasing from an unknown seller, there is a risk of receiving a knockoff or substandard part that fails prematurely. Always verify the seller s reputation and part authenticity.

2. **Labor-Intensive Replacement** Replacing a steering knuckle requires lifting the vehicle, removing the wheel, disconnecting the ball joint, CV axle, and sometimes the sway bar link. This job is best left to professionals unless you have experience with suspension work.

3. **Additional Components May Need Replacement** If the steering knuckle is being replaced due to wear, other related parts (e.g., ball joints, bushings, or wheel bearings) may also be failing. A mechanic should inspect these during installation to avoid future issues.

4. **Alignment Required After Installation** After replacing the steering knuckle, a wheel alignment is necessary to ensure proper tire contact and handling. This adds to the overall cost if not already accounted for.

5. **Cost of the Part Itself** While not excessively expensive, the price can vary depending on whether you buy OEM, aftermarket, or used. Prices typically range from **$50 $150 for the part alone**, with labor adding significantly if professional installation is required.

6. **Risk of Improper Installation** If not installed correctly, the steering knuckle could cause misalignment, uneven tire wear, or even damage to the wheel bearings or CV joints. This underscores the importance of either having mechanical expertise or using a trusted mechanic.

7. **Wear on Related Parts** Even if the steering knuckle is in good condition, other suspension components (e.g., control arms, bushings) may be worn and could fail soon after replacement. A full suspension inspection is advisable before purchasing.

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Replacing a steering knuckle on a **1984 1989 Chevrolet S10/GMC S15 (4WD)** is a practical solution if the part is failing, as it prevents more severe issues like wheel detachment or excessive tire wear. The benefits improved handling, safety, and longevity outweigh the drawbacks if the part is sourced from a reputable supplier and installed correctly.

However, the **labor-intensive nature of the job, potential for hidden issues with related suspension components, and the need for post-installation alignment** make this a repair best handled by a professional mechanic unless you have the necessary skills. If you re unsure about the condition of other suspension parts, a full inspection before purchasing the knuckle is wise.

- **Buy from a trusted source** (e.g., RockAuto, eBay with verified sellers, or a local auto parts store) to ensure authenticity and quality.

- **Inspect or have a mechanic check** other suspension components (ball joints, bushings, wheel bearings) before committing to the replacement.

- **Budget for professional installation** if you lack mechanical experience, as improper installation can lead to more problems than it solves.

- **Get a wheel alignment** after replacement to ensure optimal tire performance and longevity.

- **Consider a full suspension rebuild** if multiple components are failing, as this may be more cost-effective in the long run.

**Final Verdict:** If the steering knuckle is the only failing part and you have access to proper tools or a mechanic, replacing it is a sound investment. However, weigh the cost of labor and potential additional repairs against the part s price to determine the best course of action.

Details:

Part Comments: LH 4X4 Condition: The knuckle has been cleaned, inspected and painted. Model: BLAZER S10/JIMMY S15 1987. It is not damaged and in good condition.

Odometer:0 Miles. This may fit other years and model's as well.

specifications tirolik:

• for models: S10, 4wd
• for makes: Chevrolet, Gmc
• for years: 1984-1989
• brand: Gm
• mpn: 14070359
• type: Steering Knuckle
• placement on vehicle: Left
• interchange notes: 4x4; Left

payments tirolik:

• other
• credit card: Mastercard
• wallet: Paypal

shipping tirolik:

• service: UPS Ground
• carrier: UPS
• transit: 9-15 Days
• class: Standard
• type: Calculated
• cost: $22.12

returns tirolik:

• paid by: Buyer
• policy: Returns Accepted
• time: 30 Days

offer tirolik:

• availability: In Stock
• quantity: 2
• best offers: True
• options: Ship-to-home
• started: March 23, 2026
• sold: 0

seller tirolik:

• # reviews: 6208
• city: Fulton, New York
• rating: 100.0%

general tirolik:

• Car Truck Parts Accessories > Steering Suspension > Tie Rods Steering Linkages
• condition: Used

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