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QA1

QAP Coil-Over Conversion

$939.95

SKU: GS510-10700 · Suspension & Chassis

Product Details

Upgrade the front suspension of your NBS truck with QA1’s coil-over kit. Designed for 2WD 1999–2006 Silverado and Sierra 1500s with QA1 tubular upper and lower control arms and includes QA1’s single 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 features QA1’s single 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. MADE IN THE USA QA1 NBS suspension is proudly made in Lakeville, Minnesota and built to last.

  • QA1 single adjustable front coil-overs with 18 clicks of valving control
  • 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
  • Spanner wrench and thrust bearing included
  • 1"-3" drop 3"-5" with the drop spindle
  • Bolt-on design—no welding required

Vehicle Fitment 8 applications

Chevrolet (4)

  • 1999–2006 Silverado 1500 4.3L Vortec V6
  • 1999–2006 Silverado 1500 4.8L V8 (Gen III LS)
  • 1999–2006 Silverado 1500 5.3L V8 (Gen III LS)
  • 2003–2006 Silverado 1500 6.0L V8 (Gen III LS)

GMC (4)

  • 1999–2006 Sierra 1500 4.3L Vortec V6
  • 1999–2006 Sierra 1500 4.8L V8 (Gen III LS)
  • 1999–2006 Sierra 1500 5.3L V8 (Gen III LS)
  • 2001–2006 Sierra 1500 6.0L V8 (Gen III LS)