Upgrade the front suspension of your NBS truck with QA1’s coil-over conversion. Designed for 2WD 1999–2006 Silverado and Sierra 1500s with QA1 tubular upper and lower control arms and includes 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.

RIDE QUALITY YOU CAN TUNE

This kit includes QA1’s double adjustable coil-overs, giving you 18 clicks of independent compression and rebound adjustment to fine-tune how your truck rides and handles. 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.

MADE IN THE USA

QA1 NBS suspension is proudly made in Lakeville, Minnesota and built to last.

FEATURES & BENEFITS

• QA1 double adjustable front coil-overs with 18 clicks of independent compression and rebound control
• 1"-3" drop 3"-5" with the drop spindle
• 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 NBS Chevrolet Silverado / GMC Sierra 1500 2WD with coil front suspension
• Works exclusively with QA1 lower control arms
• Will not fit OEM or other manufacturer lower control arms
• Not compatible with vehicles originally equipped with torsion bar front suspension