Complete Guide to McGaughys Suspension Parts 34070: Features, Fitment, and Installation

McGaughys has been a trusted name in the automotive aftermarket for decades, specializing in suspension components that improve both the look and handling of trucks and SUVs. Their part number 34070 refers to a specific suspension component designed to deliver a precise ride height adjustment and improved road manners. This article covers everything you need to know about the McGaughys 34070 suspension part, from its specifications and vehicle fitment to practical installation advice and maintenance tips. Whether you are upgrading your daily driver or building a custom truck, understanding what this part offers will help you make an informed decision.

Overview of McGaughys Suspension Parts 34070

The McGaughys 34070 is a suspension component, typically a control arm or a spindle, designed for lowering or leveling certain pickup trucks and SUVs. McGaughys is known for engineering parts that maintain proper suspension geometry, ensuring that after lowering, the vehicle still drives straight and wears tires evenly. The 34070 part is specifically engineered for select models, offering a bolt-on installation with minimal modifications required.

Key Features and Specifications

• Construction: Made from high-strength steel with a durable powder-coated finish to resist corrosion and wear.
• Design: Precision-machined ball joints and bushings for smooth articulation and long service life.
• Geometry: Optimized to correct camber and caster angles after lowering, preventing premature tire wear and poor handling.
• Drop Amount: Typically provides a 2 to 3 inch drop, depending on the vehicle application.
• Hardware: Includes all necessary mounting hardware, often with grade 8 bolts for safety.

Dimensions and Compatibility

The McGaughys 34070 is vehicle-specific. Common applications include 1999-2007 General Motors trucks and SUVs (C1500, Yukon, Tahoe), but always verify compatibility with your exact year and model. The part is designed for 2WD models; 4WD versions require different components. Consult the official McGaughys fitment guide or contact a knowledgeable dealer to confirm the 34070 fits your vehicle before purchasing.

Vehicle Compatibility and Applications

While the 34070 is primarily listed for 1999-2007 GM 2WD full-size trucks, it may also fit some later models with minor modifications. Applications include:

• Chevrolet Silverado 1500 (1999-2007)
• GMC Sierra 1500 (1999-2007)
• Chevrolet Tahoe / GMC Yukon (2000-2006)
• Chevrolet Suburban (2000-2006)

Always double-check the year and drive type. Using the part on incompatible vehicles can lead to unsafe handling and accelerated wear.

Benefits of Upgrading to the 34070 Suspension Part

Upgrading to McGaughys suspension components offers several advantages over generic lowering methods:

1. Improved Ride Quality: Unlike cheap drop spindles or cut coils, the 34070 maintains proper suspension travel and damping, resulting in a smoother ride.
2. Enhanced Handling: Corrected geometry reduces body roll and improves cornering response, making the vehicle more stable at highway speeds.
3. Professional Appearance: A lowered stance without excessive tire wear or clearance issues gives your truck a clean, aggressive look.
4. Durability: McGaughys components are built to withstand daily driving and occasional towing, outlasting many budget alternatives.

Installation Considerations

Installing the McGaughys 34070 is a moderate DIY job for someone with mechanical experience, but professional installation is recommended if you lack proper tools or knowledge.

Tools Needed

• Floor jack and jack stands
• Socket set (metric and standard)
• Torque wrench
• Ball joint press (if replacing control arms)
• Pry bar and hammer
• Penetrating oil (for rusty bolts)

Step-by-Step Overview

1. Safety First: Secure the vehicle on level ground and use jack stands. Never work under a vehicle supported only by a jack.
2. Remove the Wheel: Jack up the vehicle and remove the wheel and tire.
3. Disconnect Suspension Components: Unbolt the shock absorber, sway bar link, and steering linkage as needed.
4. Remove the Old Control Arm/Spindle: Depending on your vehicle, you may need to separate the ball joint using a press or pickle fork.
5. Install the McGaughys 34070: Bolt the new component in place, using the supplied hardware. Do not fully tighten until all parts are aligned.
6. Reassemble and Torque: Reattach all components and tighten to manufacturer specifications (torque values usually provided in the instruction sheet).
7. Alignment: After installation, a professional alignment is mandatory to set camber, caster, and toe to factory or recommended specs. Improper alignment can cause rapid tire wear and poor handling.

Common Challenges

• Rust: On older vehicles, bolts may be seized. Apply penetrating oil a day before and use impact tools if possible.
• Ball Joint Separation: A ball joint press is often necessary; avoid using a hammer directly on the joint.
• Alignment Adjustments: Some vehicles may require aftermarket camber bolts to achieve proper specs after lowering.

Maintenance and Longevity

McGaughys 34070 parts are built to last, but regular inspection extends their life:

• Check Ball Joints and Bushings: Every oil change, look for torn boots or excessive play.
• Lubrication: Some components have grease fittings; grease them periodically with quality chassis lube.
• Inspect Hardware: Ensure all bolts remain tight. Use thread-locker on critical fasteners if recommended.
• Tire Wear: Monitor for uneven wear, which indicates alignment issues or worn suspension parts.

With proper maintenance, the 34070 suspension component can provide years of reliable service, even under daily driving or light towing.

Comparing McGaughys 34070 with Alternatives

When choosing a lowering solution for your GM truck, you may also consider parts from brands like Belltech, DJM, or Eibach. Here is how the McGaughys 34070 stacks up:

• Versus Drop Spindles: Drop spindles are sometimes used for the front on 2WD GM trucks, but they can change the scrub radius and steering feel. The 34070 control arm is designed to maintain proper geometry better than some spindle kits.
• Versus Coil Spring Inserts: Inserts are cheap but often result in a harsh ride and may not correct alignment. The 34070 provides a more complete solution with correct geometry.
• Versus Other Control Arms: McGaughys parts are known for fit and finish. Some competitors may use lower-grade bushings or thinner steel. The 34070's powder coat and greasable ball joints are a plus.

For most enthusiasts, the McGaughys 34070 represents a solid balance of quality, price, and performance, especially for those seeking a reliable 2-3 inch drop without excessive compromise.

Final Recommendation

The McGaughys suspension part 34070 is an excellent choice if you own a 1999-2007 GM 2WD truck or SUV and want a properly engineered lowering solution. It delivers improved appearance, handling, and ride quality without the pitfalls of cheap alternatives. Before buying, verify your vehicle’s year, model, and drive type, and always plan for a professional alignment after installation. If you’re comfortable with basic suspension work and have the right tools, you can install it yourself—or leave it to a shop for peace of mind. For a dependable, long-lasting upgrade, the McGaughys 34070 is worth the investment.