DJM Suspension Upper Control Arms for 1999–2006 (2007 Classic) Chevy Silverado & GMC Sierra 1500 – The Perfect Match for Lowered Trucks

When lowering a truck for improved performance or a show-ready stance, it’s essential to consider how every component affects your suspension geometry and ride quality. One of the most overlooked, yet critical upgrades is the upper control arm. If you're running DJM’s CA2599L-4 4-Inch Front Lowering Control Arms or CA2599L-5 5-Inch Front Lowering Control Arms on your 1999–2006 (2007 Classic) Chevy Silverado 1500 or GMC Sierra 1500, then DJM’s upper control arms are the ideal addition to your front suspension setup.

These precision-engineered upper control arms provide a direct OEM-style fit and feature twin-tube pivot sleeves that allow for improved articulation and long-lasting durability. More importantly, they’re designed specifically to correct ball joint angles and alignment issues caused by extreme lowering—without affecting your vehicle’s ride height. This means better tire wear, improved steering feel, and a smoother ride, all while maintaining the aggressive stance you’re after.

Engineered for Lowered Trucks

Lowering your truck with front drop control arms can create an aggressive look and improve handling. However, it can also drastically change the front-end geometry of your suspension system. Excessive lowering often results in poor alignment specs, increased camber, and dangerous ball joint angles that reduce part longevity and driving stability.

DJM Suspension upper control arms solve these problems by providing a corrected mounting position for the upper ball joint. This helps reduce binding, extends the life of your ball joints, and brings your truck back into proper alignment range—all without raising your ride height.

Direct Fit Design with Premium Components

These upper control arms are designed as a bolt-in replacement for stock arms, making installation fast and straightforward with basic tools. No cutting or welding required. DJM arms are precision fabricated to work seamlessly with the factory spindle and frame mount, while perfectly complementing the geometry of the CA2599L-4 and CA2599L-5 lower arms.

Each set of DJM upper arms includes:

• New OEM-style ball joints Replacement Part: Moog K6540

• Heavy-duty polyurethane bushings Replacement Part: BK2599U Bushing Kit

• Twin-tube pivot sleeves for durability and improved articulation

These components are the same high-quality materials used in DJM’s industry-renowned lowering kits, giving your build a cohesive, professional appearance while improving performance.

Key Features and Benefits

Improved Ball Joint Angles

By re-positioning the upper ball joint mounting angle, DJM’s upper arms alleviate the excessive angles found on dropped trucks. This reduces stress on the ball joints, prevents premature wear, and leads to better suspension cycling and articulation.

Better Alignment Settings

Lowered trucks often suffer from negative camber and poor toe settings. DJM upper control arms correct these geometry issues, allowing your vehicle to achieve factory alignment specs or even better—ensuring proper tire wear and improved handling.

No Change to Ride Height

These arms are designed strictly to improve suspension geometry. Unlike lowering or lifting arms, they do not change your truck’s ride height, making them the perfect match for your existing 4-inch or 5-inch DJM front drop arms.

Durable Urethane Bushings

Each upper arm includes DJM’s durable urethane bushings (BK2599U) which offer better performance than factory rubber bushings. They provide improved handling response and last significantly longer under harsh conditions.

High-Quality Finish

Powder-coated to resist corrosion and withstand extreme temperatures and road conditions. Perfect for both daily drivers and show-quality builds.

Why You Need Upper Control Arms for a Lowered Truck

Most DIY and professional builders focus heavily on front lowering kits, but upper control arms are often the missing piece to a fully optimized setup. Without the proper upper arms, your truck may:

• Experience rapid tire wear due to incorrect camber

• Have unsafe or loose steering feel

• Wear out ball joints quickly

• Suffer from reduced ride comfort or poor suspension articulation

Installing DJM’s upper control arms solves all of these issues while enhancing the appearance and performance of your front suspension.

Vehicle Compatibility

DJM Suspension Upper Control Arms are specifically designed for:

• 1999–2006 Chevy Silverado 1500 (2WD only)

• 2007 Chevy Silverado Classic 1500 (2WD only)

• 1999–2006 GMC Sierra 1500 (2WD only)

• 2007 GMC Sierra Classic 1500 (2WD only)

Note: These arms are intended for use with DJM Lowering Control Arms and are not compatible with stock height or lifted suspension setups.

Recommended Replacement Parts

To keep your suspension system performing like new, DJM recommends the following replacement parts, which are available directly from store.gaugemagazine.com:

• Ball Joint 6540 (Moog K6540): A direct OEM-style ball joint compatible with DJM upper control arms.

• Bushing Kit BK2599U: Replacement urethane bushing kit for long-term durability and performance.

Why Buy from Gauge-Store.com?

We are your trusted source for DJM Suspension products and custom truck suspension components. When you order from Gauge-Store, you get:

• ✅ Fast, reliable shipping

• ✅ 100% authentic DJM products

• ✅ Expert suspension support

• ✅ Real-time inventory and fitment tools

• ✅ Peace of mind with a customer-first return policy

Order Today – Build It Right the First Time

If you're serious about lowering your Silverado or Sierra, don’t skip over the details. DJM Upper Control Arms are the finishing touch your front suspension needs to handle properly, look complete, and perform at its best. Engineered for aggressive drops and built to last, these arms give you the alignment correction, strength, and consistency your build deserves.

Click below to explore the parts that complete the package:

• CA2599L-4 – 4” Front Lowering Arms

• CA2599L-5 – 5” Front Lowering Arms

• Replacement Ball Joint – Moog K6540

• BK2599U – Upper Control Arm Bushing Kit