Product Overview 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 STANCEQA1’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. Fitment Notes Fits 1999–2006 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
This Part Fits:
| Year |
Make |
Model |
Submodel |
| 1999-2005 |
Chevrolet |
Silverado 1500 |
Base |
| 2004-2006 |
Chevrolet |
Silverado 1500 |
Hybrid |
| 1999-2006 |
Chevrolet |
Silverado 1500 |
LS |
| 1999-2006 |
Chevrolet |
Silverado 1500 |
LT |
| 2003-2006 |
Chevrolet |
Silverado 1500 |
SS |
| 2002-2006 |
Chevrolet |
Silverado 1500 |
WT |
| 2004-2005 |
Chevrolet |
Silverado 1500 |
Z71 Off-Road |
| 2002-2005 |
GMC |
Sierra 1500 |
Base |
| 2001 |
GMC |
Sierra 1500 |
C3 |
| 2002-2006 |
GMC |
Sierra 1500 |
Denali |
| 2002 |
GMC |
Sierra 1500 |
HT |
| 2005-2006 |
GMC |
Sierra 1500 |
Hybrid |
| 1999-2003,2006 |
GMC |
Sierra 1500 |
SL |
| 1999-2006 |
GMC |
Sierra 1500 |
SLE |
| 1999-2006 |
GMC |
Sierra 1500 |
SLT |
| 2002-2006 |
GMC |
Sierra 1500 |
WT |
