DJM Suspension 4″ Front / 6″ Rear Complete Lowering Kit with Upper Control Arms – 1999–2006 Chevy Silverado & GMC Sierra 1500 (2WD)

If you want to transform your 1999–2006 Chevy Silverado 1500 or GMC Sierra 1500 into a head-turning, road-hugging showpiece without sacrificing ride quality or suspension integrity, the DJM Suspension 4” Front / 6” Rear Complete Lowering Kit with Upper Control Arms is the perfect solution.

This kit delivers a 4-inch drop in the front and a 6-inch drop in the rear, giving your truck that aggressive street stance that’s been a favorite among custom truck owners for decades. And unlike many lowering kits that compromise geometry and cause alignment headaches, this DJM setup is engineered to keep your suspension angles correct, your ride smooth, and your handling sharp.

* Why Choose This 4/6 Drop Kit with Upper Control Arms?

The 4/6 drop has been a staple in the lowered truck world since the late '80s and '90s, popularized by iconic C1500 builds. But on the 1999–2006 Silverado/Sierra platform, lowering a full 4 inches in the front while keeping proper alignment and suspension travel requires more than just spindles or springs.

DJM solved this with precision-engineered upper and lower control arms that work with the factory coil springs to achieve the drop while correcting ball joint and alignment angles.

Key benefits include:

• Proper Geometry – Upper control arms correct alignment so you can dial in factory specs.

• No Harsh Ride – Maintain suspension travel and avoid bottoming out.

• Durable Components – Includes heavy-duty ball joints, urethane bushings, and twin-tube pivot sleeves.

• Complete Rear Setup – A DJM axle flip kit with frame supports gets you a full 6-inch drop in the back with safe clearance.

• Shocks Included – Tuned for lowered ride height to keep things smooth.

* What’s Included in the Kit

This DJM lowering kit comes with everything you need to achieve the 4/6 stance properly:

Front Suspension (4″ Drop)

• Upper Control Arms – Correct alignment angles and reduce ball joint stress. Comes with urethane bushings, twin-tube pivot sleeves, and new ball joints pre-installed.
  Shop Upper Control Arms here: Upper Control Arms

• Lower Control Arms – Provide the full 4-inch front drop while retaining your factory coil springs for ride quality and avoiding tire clearance issues.
  View Lower Control Arms here: Lower Control Arms

• Front Shocks – DJM 1415 – Specially valved for lowered applications to provide a smooth, controlled ride.
  Get DJM Front Shocks here: DJM 1415 Shocks

Rear Suspension (6″ Drop)

• Axle Flip Kit with Frame C-Notch Supports – Flips the rear axle above the leaf springs, creating a true 6-inch drop while maintaining suspension integrity. The included frame supports reinforce the C-notch for strength and durability.
  Shop Flip Kits here: DJM Flip Kits

• Shock Extender & Hardware – Included in the flip kit to keep shock angles correct after lowering.

• Rear Shocks – DJM 1800 (Driver) & DJM 1900 (Passenger) – Designed for the 6-inch lowered stance.
  View DJM Rear Shocks here: DJM Rear Shocks

Fitment Guide

This kit is compatible with:

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

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

Not for use on:

• 4WD models

• Heavy-duty 2500/3500 series trucks

* Installation Overview

Estimated Install Time: 8–12 hours
Difficulty Level: Experienced DIYer or Professional Recommended

Basic Steps:

1. Safely lift and support your truck.

2. Remove the stock front upper and lower control arms and replace them with the DJM units.

3. Install the rear axle flip kit, C-notch frame supports, and hardware.

4. Install the provided shocks (front and rear).

5. Torque all hardware to manufacturer specs.

6. Get a professional alignment to factory specs.

If you don’t have the tools or experience, we strongly recommend professional installation.

* Performance & Ride Quality

Many lowering kits push ball joints to extreme angles and cause premature wear, bump steer, and rough handling. This DJM kit avoids those problems by:

• Optimizing control arm geometry.

• Using heavy-duty, OEM-style ball joints.

• Maintaining full suspension travel front and rear.

* Why Buy From Gauge-Store

When you shop at store.gaugemagazine.com, you’re getting:

• Genuine DJM Suspension parts – No knock-offs or unverified brands.

• Fast shipping from an authorized dealer.

• Expert support from people who know lowered trucks inside and out.

• Full line of matching components – From control arms to shocks and hardware.

* Order Your Kit Today

Don’t settle for a drop that looks good but rides poorly. Get the DJM 4″ Front / 6″ Rear Complete Lowering Kit with Upper Control Arms and give your Silverado or Sierra the stance, performance, and comfort it deserves.

Click here to buy now: Shop DJM 4/6 Kit with Upper Control Arms