Front Pro Coil Shock System, 99-06 Silverado/Sierra 1500 2WD, Double Adjustable
QA1 #GD510-10700
 
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
Specifications
Vehicle PositionFront
Shock ValvingDouble Adjustable
Springs IncludedYes
Spring Rate700lb/in.