Ridetech 11380201 HQ Coil-Over System for 1999-2006 Silverado/Sierra (2007 Classic).

Complete Coil-over System for 1999-2006 Silverado & Sierra 1500 2WD.  (2007 Classic).  Includes front & rear HQ Series Coil-overs, front upper & lower control arms, bolt-on 4 link, drop spindles and front sway bar. Designed to lower your vehicle and improve handling and ride quality.

• Offers a ride height that is approximately 4″ lower than stock in the front and 6″ in the rear.   
• HQ Series Coil-overs utilize an impact forged aluminum body and Monotube design to deliver excellent ride quality and handling. They allow fine-tuning of the ride quality and handling the rebound knob is located at the top of the shock for under hood access. They come standard with a 1,000,0001 Mile Warranty.  Interested in AutoCross or Road Course Racing?  Consider the TQ Series coilovers.  
• The Upper StrongArms feature corrected ball joint angles for the lowered ride height and the length has been altered to create more camber adjustment.  Injection-molded Delrin bushings with 13% Teflon are used to reduce deflection and stiction.    The Lower StrongArms feature a double sheer lower shock mount for increased strength.  We have also dropped the lower shock mount to increase suspension travel and altered the length to create more camber adjustment.  Injection-molded Delrin bushings with 13% Teflon are used to reduce deflection and stiction.    
• Suspension system is the same used on the air ride kit.You can have the coil-overs converted over to an air ride system in the future.  
• A Front MuscleBar is included to reduce body roll and includes the PosiLink End-links that provide immediate engagement between the chassis and control arms. 
• Drop Spindles are used to all the use of a longer stroke shock and improve suspension geometry and bump steer.  Fits 17″ or larger wheels.  
• The Bolt On 4-Link greatly improves traction, handling and ride quality.  Installation does not require any welding or major modifications to the bed floor.  Includes patent-pending R-Joint rod ends to eliminate binding and noise.
  • Includes patent-pending R-Joint rod ends to eliminate binding and noise.
  • Optimized anti-squat, roll center and pinion angle migration for dramatic improvements in handling and traction.
  • Bolt-on C-Notch reinforces OEM frame rails and features integrated suspension mounts. 
  • Designed for simple installation with minimal OEM rivet removal.  
  • Compatible with all cab size and bed length configurations

*Not compatible with trucks equipped with factory torsion bar front suspension. 

Upgrades:

•  TQ Series Shocks- The remote reservoir triple adjustable coil-over shocks feature rebound adjustment along with dual stage (High Speed & Low Speed) compression adjustment.   High-speed adjustment allows tuning for impact harshness and low speed adjustment allows tuning of cornering characteristics, perfect for use on the autocross, road course and drag strip.  Read More