QA1 LK12-GMT03 4/6 Lowering Kit | 07-16 Silverado/Sierra 1500 - 2WD - Cast Steel Arms - Double Adjustable

QA1 LK12-GMT03 4/6 Lowering Kit | 07-16 Silverado/Sierra 1500 - 2WD - Cast Steel Arms - Double Adjustable

Give your 2007-2016 Chevrolet Silverado or GMC Sierra 1500 2WD the stance, ride quality, and handling it deserves with the QA1 4/6 Lowering Kit. Designed for trucks equipped with factory cast steel control arms, this complete system combines QA1 front Pro Coil coil-overs, 2" drop spindles, and a rear drop system to deliver an aggressive 4/6-style stance with extensive ride height adjustability.

GET THE STANCE YOU WANT

QA1's adjustable design gives you more control over your Silverado or Sierra's final ride height. Fully threaded front Pro Coil shock bodies eliminate the need for cumbersome shims or spacers and combine with 2" drop spindles to provide approximately 3-5 inches of front drop. Out back, the adjustable shackle and hanger system provides 4-6 inches of rear drop in 1/2-inch increments.

Whether you're after a traditional 4/6 drop or want to fine-tune the stance, you have the adjustability to get it right.

BUILT FOR TRUCK DUTY

QA1's heavy-duty Pro Coil system is engineered specifically for the weight and demands of modern trucks. Upgraded shocks feature durable polyurethane bushings and a 1" chromoly T-bar designed to stand up to regular street use while delivering the control expected from a performance suspension.

DIAL IN YOUR RIDE

QA1 double-adjustable Pro Coil shocks provide independent control of compression and rebound damping, allowing you to fine-tune how your truck rides and handles. Dial in a comfortable setting for cruising or increase suspension control for more aggressive driving and performance use.

LOWER THE REAR WITHOUT SACRIFICING THE RIDE

Heavy-gauge steel shackles and hangers provide a durable, effective way to achieve the desired rear ride height. A powder-coated finish helps protect the components from corrosion, while the adjustable design lets you fine-tune the rear drop to complement your front suspension setup.

BOLT-ON AND GO

The QA1 4/6 Lowering Kit is engineered as a bolt-on system, minimizing the need for fabrication or complicated suspension modifications. Each component is designed to work together, giving you a more straightforward path to the stance and performance you're after.

BEST-IN-CLASS LIFETIME WARRANTY

QA1 shocks are backed by a best-in-class lifetime warranty. Register your shocks for coverage and see warranty terms and conditions for complete details.

FEATURES & BENEFITS

• Complete lowering system for 2007-2016 Silverado and Sierra 1500 2WD
• Designed for trucks with factory cast steel control arms
• Approximately 3-5 inches of front drop
• Adjustable 4-6 inches of rear drop
• Rear ride height adjustable in 1/2-inch increments
• Includes 2" drop spindles
• Heavy-duty QA1 Pro Coil coil-overs
• Double-adjustable shocks with independent compression and rebound control
• Improves stance, ride quality, handling, and suspension control
• Heavy-gauge steel rear shackles and hangers
• Bolt-on design
• QA1 shocks backed by a lifetime warranty

FITMENT NOTES

• Fits 2007-2016 Chevrolet Silverado and GMC Sierra 1500 2WD
• Only compatible with trucks equipped with factory cast steel control arms
• Direct fit for 2007-2013 applications
• 2014-2016 applications must have factory cast steel control arms
• Not compatible with 2014-2016 trucks equipped with aluminum or stamped steel control arms
• Requires 17" or larger wheels
• Axle U-bolts are not included
• Does not fit 1500HD models
• Does not fit 2007 Silverado/Sierra 1500 Classic models
• Offset upper control arm bushings (ACDelco PN 45K0201) may be required on vehicles lowered more than 2.5" to achieve alignment within factory specifications