(3” Front / 5” Rear) Complete Lowering Kit – Fits 2WD & 4WD

Transform the stance, handling, and visual attitude of your heavy-duty GM truck with the 2001–2010 Chevy 2500HD / 3500HD Short Bed 3” Front / 5” Rear Complete Lowering Kit. This professionally engineered suspension package is the perfect solution for truck owners who want a bold, aggressive lowered look without sacrificing factory ride quality, drivability, or reliability.

If you don’t want your HD sitting flat on the ground but still want a dramatic, functional drop that cleans up wheel gap and sharpens road manners, this is the ideal setup. Designed to deliver a balanced 3” front and 5” rear drop, this kit combines Calmax front lowering control arms with a properly matched rear hanger and shackle system, along with application-specific shocks to maintain comfort and control.

Whether you’re building a daily-driven street truck, a show-quality cruiser, or a workhorse with a custom stance, this complete lowering system delivers the performance, fitment accuracy, and durability your HD deserves.

Engineered for Heavy-Duty Performance and Factory Ride Quality

Lowering a 2500HD or 3500HD isn’t the same as lowering a half-ton truck. These HD platforms use torsion bars up front and heavy leaf springs in the rear, meaning shortcuts can quickly result in poor ride quality, alignment problems, or premature wear.

This kit is designed specifically for the 2001–2010 Chevy Silverado and GMC Sierra 2500HD / 3500HD short bed trucks, addressing all the unique challenges of heavy-duty suspension geometry.

Front Drop: 3” Calmax Lowering Control Arms

The front of this kit uses Calmax lowering control arms to achieve a true 3-inch drop while retaining factory torsion bar spring rates.

Key advantages of the Calmax control arm design:

• Direct bolt-on replacement for factory control arms

• Retains factory torsion bars and spring rate

• Preserves near-stock ride quality

• Corrects ball joint angles and suspension geometry

• Maintains proper alignment specs

• Improves suspension travel compared to torsion key drops

• Includes urethane bushings for improved handling and durability

• Includes brand-new all-steel ball joints for long service life

Unlike torsion key cranking or cut-rate drop solutions, Calmax arms reposition the spindle mounting point correctly, allowing your suspension to sit lower without over-stressing ball joints, bushings, or CV angles. This means better ride comfort, longer component life, and safer handling.

Rear Drop: 5” Hanger & Shackle Kit for Proper Geometry

To match the aggressive front stance, the rear of the truck is lowered a full 5 inches using a traditional hanger and shackle system.

This method relocates the rear leaf spring eye upward on the frame using precision-engineered brackets. By raising the mounting point instead of excessively flattening or removing leafs, the suspension retains strength, load capacity, and consistent geometry.

Rear system benefits:

• Achieves a true 5” rear drop

• Maintains correct pinion and driveline angles

• Preserves load-carrying ability

• Reduces axle wrap compared to block-only drops

• Strong, welded steel bracket construction

• Designed specifically for 2500HD / 3500HD short beds

Important Fitment Check (Before Ordering)

To ensure a smooth installation and proper fitment, you should inspect your factory rear leaf spring eye hangers before ordering.

All 2500HD / 3500HD short bed trucks we’ve seen use the correct factory hanger style required for this kit. However, GM made occasional production variations.

Quick check recommendation:

• Look at your factory rear leaf spring front eye hanger

• Compare it to the reference image provided below

• This simple step can save you from unexpected delays during installation.

Complete Shock Package Included

Unlike many lowering kits that leave you guessing which shocks you need, this is a true complete kit that includes properly valved, application-specific shocks for all four corners.

Included shocks:

• Front shocks: #1415

• Rear driver side shock: #2200

• Rear passenger side shock: #2400

These shocks are specifically matched to the new ride height and suspension travel to ensure:

• Improved ride comfort

• Better control over bumps and dips

• Reduced body roll

• Proper shock stroke and rebound range

• Long-term durability

Fits Both 2WD and 4WD Models

This lowering kit is engineered to work on both 2WD and 4WD 2001–2010 Chevy and GMC 2500HD / 3500HD short bed trucks.

That means no guesswork and no need to purchase separate front kits based on drivetrain. The Calmax arms and rear hanger/shackle system are designed to accommodate both configurations while maintaining correct geometry.

Why Choose This 3” / 5” HD Lowering Kit?

1. Balanced Aggressive Stance

The 3” front / 5” rear combination gives your HD truck a leveled, performance-oriented stance without scraping everywhere you go. It removes excessive wheel gap while maintaining real-world usability.

2. Factory-Like Ride Quality

By retaining torsion bar spring rates and using engineered geometry correction, this kit preserves a smooth, controlled ride—unlike cheap drop solutions that ride harsh and wear out components.

3. Correct Suspension Geometry

Calmax control arms correct ball joint and alignment angles, ensuring long-term reliability and predictable handling.

4. Complete System – No Guesswork

With shocks included and all major components engineered to work together, this kit eliminates compatibility issues.

5. Heavy-Duty Strength

Every component is built to handle the weight and demands of a 2500HD / 3500HD platform.

Vehicle Fitment

Fits:

• 2001–2010 Chevy Silverado 2500HD Short Bed

• 2001–2010 GMC Sierra 2500HD Short Bed

• 2001–2010 Chevy Silverado 3500HD Short Bed

• 2001–2010 GMC Sierra 3500HD Short Bed

Drivetrain Compatibility:

• 2WD

• 4WD

Installation Overview

This kit is designed for bolt-on installation using factory mounting points.

Front installation:

• Remove factory upper and lower control arms

• Install Calmax control arms

• Reuse factory torsion bars

• Install front shocks

• Perform wheel alignment

Rear installation:

• Support rear axle

• Remove factory leaf spring hangers

• Install new hanger brackets

• Install shackles

• Reposition leaf springs

• Install rear shocks

• Check pinion angle

Professional installation is recommended, especially for rear hanger replacement, which may require drilling or rivet removal depending on factory configuration.

Alignment & Tire Fitment Considerations

After installation, a professional alignment is required. The Calmax arms are engineered to allow proper camber, caster, and toe adjustment at the new ride height.

Typical tire and wheel setups:

• 20”–24” wheels commonly fit well

• Lower profile performance tires recommended

• Exact fitment depends on wheel width and offset

Ideal For

• Daily-driven street trucks

• Custom show builds

• Performance-oriented HD builds

• Towing and hauling (moderate loads)

• Owners who want stance without sacrificing drivability

Upgrade Your HD the Right Way

The 2001–2010 Chevy 2500HD / 3500HD Short Bed 3” Front / 5” Rear Complete Lowering Kit delivers the perfect combination of stance, ride quality, durability, and geometry correction.

With Calmax control arms, a proven rear hanger/shackle system, and included matched shocks, this is one of the most refined lowering solutions available for heavy-duty GM trucks.

If you’re serious about lowering your HD the right way—without compromising safety, comfort, or component life—this complete kit is the smart, proven choice.