Switch Suspension 2150 W. Broadway Rd. #102 Mesa, Az 85202
Phone: 800-928-1984
Hours: 8am-5pm Monday thru Friday
Closed on Saturday/Sunday

Chevrolet Silverado 1500 2007-2018 QA1 4"/6" Drop Kit w/ Coilovers

$1,911.95 - $2,311.95

Product Overview

Fits: Chevrolet Silverado 1500 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018

       GMC Sierra 1500 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018

The QA1 lowering kit is an all-in-one solution for anyone looking to upgrade the suspension of their 07-18 Silverado 1500 / Sierra 1500's. This kit includes both QA1's front Pro Coil Coil-Overs and Rear Drop Kit, which provide maximum adjustability to achieve the perfect lowered stance, while providing significant improvements to ride quality and performance.

Ride Height Adjustability
QA1 lowering kits offer easy and precise adjustments for your truck's stance. Fully threaded front coil-over shock bodies provide adjustment without the use of clumsy shims or spacers, while our rear drop kits offer 2” of adjustment to dial in the final rake of the truck.

Front coil-overs provide a drop range of 3"-5" using drop spindles or 1"-3" with stock spindles. Lower the rear with a drop range of 4-6”.

Heavy Duty Shock Design
QA1 Engineers have tackled the challenge of supporting the weight and payload capacity of modern trucks by designing the heavy-duty version of our Pro Coil system, which features an upgraded shock with polyurethane bushings and a 1" chromoly T-bar. The system's new bushing design was specifically chosen to withstand the daily use of trucks, rather than using spherical bearings.

Single-Adjustable Shocks
QA1 Proma Star single adjustable shocks deliver exceptional ride quality and performance to your Silverado. With the simple turn of a dial, you can effortlessly switch between a comfortable cruise and a more aggressive feel, making them ideal for daily driving or twisty backroads.

Rear Shackles and Hanger Kits
QA1's Rear Shackle and Hanger Kits are the ultimate solution for lowering the rear of your truck without compromising ride quality. Made from heavy-gauge steel with a powder-coated finish and top-notch hardware, our kits guarantee long-lasting performance in any driving conditions.

Easy, Bolt-In Installation
Our commitment to thoughtful product design is evident in every fully bolt-in kit we produce, which guarantees a hassle-free installation process.

Best In-Class Lifetime Warranty
Register at for lifetime coverage of your QA1 shocks.

Made in the USA
QA1 truck suspension is proudly made in Lakeville, Minnesota.

Fitment Notes
Requires use of QA1 spanner wrench T114W or T115W
Compatible with OEM or aftermarket drop spindles
Axle U-bolts not included
Does not fit 1500HD model trucks
Offset upper control arm bushings (AcDelco PN 45K0201) may be required on vehicles lowered more the 2.5” to align within the factory specifications.


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