GMC TRUCK SIERRA150 Steering Gear Rack Pinion 551-11066 2.7L 4X2

( Brand: Gmc Truck ), ( Manufacturer Part Number: SIERRA150 ), ( Part Type: Steering Pinion Gear Rack ), ( Conditions Options: 2.7 ), ( Genuine Oem: Yes ), ( Ipn: 551-11066 )

Review GMC TRUCK Steering Gear Rack And Pinion 2.7l 4x2 Cab fits SIERRA CREW 1500 2WD 2025

The **GMC 551-11066 Steering Rack Pinion Assembly** is a high-performance, precision-engineered component designed exclusively for the **2020-2023 2.7L EcoTec3 inline-four-cylinder 4x2 (2WD) crew cab models of the Chevrolet/GMC Sierra 1500**. This critical steering system part ensures smooth, responsive, and accurate directional control while maintaining durability under rigorous daily driving conditions. Crafted from high-strength, corrosion-resistant materials, the rack pinion assembly features a **tapered roller bearing system** that minimizes friction and wear, extending the lifespan of the steering mechanism. The integrated **recirculating ball nut** mechanism provides precise gearing, reducing play and enhancing steering feel, particularly during low-speed maneuvers and tight turns. This assembly is engineered to withstand the demands of both urban commuting and highway cruising, offering reliable performance in all weather and road conditions. The **sealed and lubricated design** prevents dust, moisture, and debris from infiltrating the internal components, reducing the risk of premature failure. Whether navigating tight parking spaces or maintaining stability at highway speeds, this steering rack pinion ensures a seamless and predictable driving experience. Ideal for original equipment replacement (OER) or performance upgrades, this part adheres to strict OEM specifications, guaranteeing a perfect fit and seamless integration with the vehicle s existing steering linkage, tie rods, and suspension components. For owners seeking to restore their Sierra 1500 s factory-like handling or address steering-related issues such as excessive play, binding, or fluid leaks, this rack pinion assembly delivers the precision and reliability expected from GMC s trusted engineering.

### **Pros and Cons of Buying a GMC 551-11066 25 Sierra 1500 (2.7L 4x2 2WD Crew Cab) Steering Rack/Pinion**

1. **Reliability of the 2.7L Engine** The 2.7L Ecotec inline-four engine (shared with Chevrolet) is known for being durable and efficient, especially in light-duty applications. It s a proven design with good longevity if maintained properly.

2. **Proven Steering Rack/Pinion** The steering rack and pinion in this model (likely from the late 1990s/early 2000s) is a well-documented component. While not as advanced as modern systems, it is straightforward to repair and replace parts for. Common issues (like leaks or stiffness) can be addressed with basic mechanical knowledge.

3. **2WD Simplicity** A 2WD configuration means fewer drivetrain components to worry about compared to 4WD models. This reduces potential points of failure and simplifies maintenance.

4. **Crew Cab Comfort** The crew cab provides more interior space than a regular cab, making it practical for families or those needing extra legroom.

5. **Affordability** Older GMC/Sierra trucks from this era are often sold at reasonable prices, making them a budget-friendly option for those who want a used truck without breaking the bank.

6. **Parts Availability** Since this is a well-established model, parts (especially for the engine, transmission, and steering components) are still widely available through dealerships, salvage yards, and online marketplaces.

7. **Good Towing Capacity (for its class)** While not a heavy-duty truck, the 2.7L engine can handle light to moderate towing (up to 3,500 4,000 lbs with a proper hitch) if properly equipped.

8. **Manual Transmission Option (if available)** If you can find one with a manual transmission, it offers better fuel economy and a more engaging driving experience compared to automatic models.

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1. **Age and Wear** This truck is likely **20 years old**, meaning it may have accumulated significant mileage and wear. Rust, suspension issues, and aging components (like the steering rack, power steering pump, or exhaust) are common concerns.

2. **Steering Rack/Pinion Reliability** While the rack itself is functional, it can develop leaks (power steering fluid), stiffness, or play over time. Replacing it is a labor-intensive job, and if the truck has been driven hard, the rack may be near the end of its life.

3. **Fuel Efficiency Concerns** The 2.7L engine is not known for exceptional fuel economy (expect 15 18 MPG combined). Modern trucks offer significantly better mileage, making this model less efficient for daily driving.

4. **Safety and Modern Standards** Older trucks lack modern safety features like stability control, advanced airbag systems, or electronic driver aids. Crashworthiness and structural integrity may not meet today s safety regulations.

5. **Transmission Issues** The 4T60-E or 4T65-E automatic transmissions (common in this era) can develop slipping, rough shifting, or solenoid failures over time. A rebuild or replacement may be needed.

6. **Electrical System Quirks** Older GM trucks from this period can have electrical gremlins, such as faulty sensors, intermittent wiring issues, or failing alternators.

7. **Rust and Structural Corrosion** If the truck has seen harsh winters or off-road use, rust in the frame, subframe, or wheel wells can compromise structural integrity. A thorough inspection is essential.

8. **Resale Value** This is an older model with no modern appeal, so resale value will be very low compared to newer trucks.

9. **Emissions and Compliance** Some older trucks may not meet current emissions standards, which could limit where you can drive it or require modifications.

10. **Limited Modern Upgrades** Unlike newer trucks, this model lacks compatibility with modern tech (e.g., Bluetooth, Uconnect, or advanced infotainment systems).

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- **A mechanic or DIY enthusiast** who can handle repairs and maintenance.

- **On a tight budget** and willing to accept potential long-term costs.

- **Looking for a project truck** rather than a daily driver.

**If you need a reliable, low-maintenance truck for daily use, a newer model (even a used one from the last 5 10 years) would be a far better investment.** However, if you re prepared for potential repairs, enjoy working on vehicles, and can afford the time/money for maintenance, this truck *could* be a functional (if aging) workhorse.

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- **Do not buy it as-is** unless you ve had a **full mechanical inspection** (including steering rack, transmission, suspension, and electrical system) and are confident in your ability to repair it.

- A **used 2010 2015 GMC Sierra 1500** (with a 5.3L V8 or 4.3L Duramax diesel if towing is needed) for better reliability and modern features.

- A **Ford F-150 (2015 )** or **Chevy Silverado 1500 (2014 )** for a more refined, safer, and more efficient option.

- If you *must* go older, look for a **2007 model** with fewer miles and a service history, as they re slightly more modern than this 1999 2006-era truck.

- Budget for **steering rack replacement** ( $500 $1,200 parts labor).

- Check for **rust, transmission health, and electrical issues** before purchasing.

- Consider **test-driving it multiple times** to assess handling and responsiveness.

**Final Verdict:** Unless you re a mechanic with a specific need for this exact truck, **skip it** and invest in a newer, safer, and more reliable used truck instead.

Details:

No expedited shipping is available.

specifications steragebo:

• for models: 1500, 2wd, Sierra, Crew
• for makes: Gmc
• for years: 2025
• brand: Gmc Truck
• mpn: Sierra150
• part type: Steering Pinion Gear Rack
• conditions options: 2.7
• genuine oem: Yes
• ipn: 551-11066

general steragebo:

• condition: Used
• Car Truck Parts Accessories > Steering Suspension > Gearboxes, Rack Pinions

returns steragebo:

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

shipping steragebo:

• carrier: UPS
• class: Standard
• transit: 2-5 Days
• cost: $75.00
• service: UPS Ground
• type: Fixed

seller steragebo:

• # reviews: 60845
• rating: 99.9%
• city: Richland, Mississippi

offer steragebo:

• quantity: 1
• best offers: True
• options: Ship-to-home
• started: April 13, 2026
• sold: 0
• availability: In Stock

payments steragebo:

• other
• credit card: Diners-club
• wallet: Apple-pay

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