MaxTrac KS331946S 4"/6" Lowering Kit with C-Frame Support for 2019-2026 Chevy Silverado & GMC Sierra 1500 2WD/4WD

Achieve the Ultimate 4"/6" Lowered Stance

Take your 2019–2026 Chevrolet Silverado or GMC Sierra 1500 to the next level with the MaxTrac KS331946S Lowering Kit. This complete suspension system delivers a 4-inch front drop and 6-inch rear drop using front lowering struts, heavy-duty lowering spindles, a rear flip kit, lowering shackles, a C-frame support (C-notch), and matched MaxTrac front and rear shocks. Built for both 2WD and 4WD trucks, this kit provides an aggressive show-quality stance while maintaining dependable handling and ride quality.

Key Features

Complete 4"/6" Lowering System

A complete suspension package designed to provide an aggressive lowered appearance with components engineered to work together for proper suspension geometry.

Front Lowering Struts & Spindles

Includes matched front lowering struts and heavy-duty lowering spindles to achieve a 4-inch front drop while maintaining steering geometry and suspension performance.

Rear Flip Kit & Lowering Shackles

Rear flip kit and lowering shackles provide a full 6-inch rear drop for an aggressive, level stance.

C-Frame Support (C-Notch) Included

Includes a heavy-duty C-frame support that restores suspension travel after lowering and provides the clearance needed for a 6-inch rear drop.

MaxTrac Front & Rear Shocks Included

Includes (2) MaxTrac 221903 front lowering struts and (2) MaxTrac 2000LL-4 rear shocks for excellent ride quality, stability, and suspension control.

Heavy-Duty Powder-Coated Construction

Steel suspension components feature a durable grey powder-coated finish for long-lasting corrosion resistance and durability.

What's Included

Front lowering struts (371903)
Front lowering spindles (101920)
Rear flip kit (301960)
Rear lowering shackles (412120)
C-frame support (C-notch) (301960C)
(2) MaxTrac 2000LL-4 rear shocks
Installation hardware (where supplied by manufacturer)

Vehicle Fitment

Fits

2019–2026 Chevrolet Silverado 1500 2WD & 4WD
2019–2026 GMC Sierra 1500 2WD & 4WD

Does Not Fit

Models with Adaptive Ride Control
Models equipped with monoleaf rear springs

Important Notes

Requires 18-inch wheels or larger.
17-inch wheels, including 17-inch spare tires, will not clear these spindles.
Using 18-inch wheels will reduce turning radius. A 20-inch or larger wheel improves turning radius.
Does not fit models equipped with Adaptive Ride Control.
Does not fit models equipped with monoleaf rear springs.
Frame cutting is required during installation. The included C-notch can be modified to fit 8-foot bed models (see manufacturer instructions for details).
Trail Boss and AT4 models will achieve approximately 2 inches more drop than stock height.
Axle shims may be required if driveline vibration is experienced after installation.
Setting the front lowering struts to 2–3 inches of drop will cause alignment to fall out of specification. MaxTrac Part #351900 Camber Correction Upper Control Arms are required for proper alignment at those settings.
When ordering replacement shocks or struts separately, order a quantity of 2, as they are sold individually.
MaxTrac does not recommend using wheels wider than 9 inches or wheels with less than 4.5 inches of backspacing. Failure to follow these recommendations may void the manufacturer's warranty.

Product Specifications

Brand: MaxTrac Suspension
Part Number: KS331946S
UPC: N/A
Product Type: Lowering Kit with C-Frame Support
Kit Type: Lower
Front Drop: 4 Inches
Rear Drop: 6 Inches
Front Shock Details: (2) MaxTrac 221903 Lowering Struts
Rear Shock Details: (2) MaxTrac 2000LL-4 Rear Shocks
Material: Steel
Finish: Grey Powdercoat
Color: Grey
Sold As: Kit
Weight: 144 lbs
Multiple Box Item: Yes

Why Choose the MaxTrac KS331946S?

The MaxTrac KS331946S is the complete solution for achieving a dramatic 4-inch front and 6-inch rear drop on 2019–2026 Silverado and Sierra 1500 trucks. With lowering struts, spindles, a rear flip kit, shackles, an included C-frame support, and matched MaxTrac shocks, this kit delivers an aggressive lowered stance while maintaining ride quality and suspension performance.

Perfect For

2019–2026 Chevy Silverado 1500 2WD & 4WD
2019–2026 GMC Sierra 1500 2WD & 4WD
Street truck builds
Show truck projects
Custom lowered trucks
Complete suspension installations