Upgrade the front suspension of your NBS truck with QA1’s complete coil-over and control arm kit. Designed for 2WD 1999–2006 Silverado and Sierra 1500s, this system includes tubular upper and lower control arms and QA1’s double adjustable coil-overs

DIAL IN THE PERFECT STANCE

QA1’s front coil-overs give you 1" to 3" of ride height adjustability right out of the box. Want to go lower? Pair them with QA1’s 2" drop spindles (Part Number: 9056-120) for a total drop range of 3" to 5" up front. Whether you're aiming for a subtle level or a slammed street look, this setup lets you get it just right.

IMPROVED GEOMETRY WITH BOLT-ON CONTROL ARMS

The included QA1 upper and lower tubular control arms are built to improve suspension geometry and increase strength over stock. They offer more clearance for coil-overs, reduce deflection under load, and help maintain proper alignment.

RIDE QUALITY YOU CAN TUNE

This kit features QA1’s double adjustable coil-overs, allowing you to set your preferred ride height and fine-tune damping with 18 clicks of combined compression and rebound adjustment. It’s easy to adjust on the vehicle and delivers a noticeable improvement in both comfort and control.

STRAIGHTFORWARD, BOLT-ON INSTALL

This system bolts directly into place using standard tools—no welding required. QA1 includes everything you need for a smooth install, with pre-installed ball joints and bushings in both control arms to save you time.

MADE IN THE USA

QA1 NBS suspension is proudly made in Lakeville, Minnesota and built to last with a durable powder coat finish.

FEATURES & BENEFITS

• QA1 double adjustable front coil-overs with 18 clicks of valving control
• 1"-3" drop 3"-5" with the drop spindle
• Tubular upper and lower control arms improve suspension geometry
• Pre-installed ball joints and bushings for easy installation
• Ride height adjustability to dial in stance and feel
• Bolt-on design—no welding required
• Spanner wrench and thrust bearing included
• Made in the USA

FITMENT NOTES 

• Fits 1999–2006 Chevrolet Silverado and GMC Sierra 1500 2WD with coil front suspension
• Works exclusively with QA1 sway bar (Part Number: 52869) - does not fit with factory sway bar
• Works with factory or QA1 drop spindles (Part Number: 9056-120)
• Not compatible with vehicles originally equipped with torsion bar front suspension