Product Details

The QA1 OE Width 9" Rear Suspension System is built for the 1999-2006 Chevrolet Silverado 1500 RWD.

Upgrade the rear suspension of your 1999-2006 Chevrolet Silverado with a complete QA1 Rear Suspension System, paired with a standard-width 9-inch housing and 31-spline axles. Designed for short-bed trucks, this system combines adjustable coil-over performance with straightforward wheel and tire fitment. The standard-width housing maintains the factory 68-1/4" wheel mounting surface width, making it easy to build around common wheel and tire combinations without narrowing the rear end.

Features

  • Easy wheel and tire fitment: Standard 68-1/4" wheel mounting surface width maintains the factory rear track width.
  • Modernize rear suspension performance: Coil-over suspension provides greater suspension control and a more performance-focused driving experience.
  • Tune the ride to your preference: Single-adjustable coil-overs provide 18 positions of adjustment for comfortable cruising or more responsive handling.
  • Build around your preferred wheels and brakes: Factory 6x5.5" bolt pattern and Big Ford New Style Torino housing ends provide compatibility with a wide range of combinations.
  • Start with a complete, matched system: Suspension components, coil-overs, standard-width 9-inch housing and 31-spline axles are packaged together to simplify your build.
  • Performance you can count on: QA1 shocks are 100% dyno tested and serialized.
Specifications
Part Number R145-200S
Part Name OE Width 9" Rear Suspension System
UPC 806990237729
Vehicle 1999-2006 Chevrolet Silverado 1500
Drivetrain RWD
Placement Rear
Damping Adjustment 1-Way
Notes
  • Includes single-adjustable coil-overs
  • Includes 200 lb/in. coil-over springs, 68-1/4" factory wheel mounting surface width
  • Factory 6x5.5" wheel bolt pattern
  • M14-1.5 x 1-3/4" wheel studs, 2.770" hub diameter
  • Requires a compatible 9-inch third member for 31-spline axles
  • Verify brake, wheel backspacing and tire clearance for your specific combination

Vehicle fitment

This product fits the vehicles listed below.

YearMakeModelDrivetrainNotes
1999ChevroletSilverado 1500RWD
2000ChevroletSilverado 1500RWD
2001ChevroletSilverado 1500RWD
2002ChevroletSilverado 1500RWD
2003ChevroletSilverado 1500RWD
2004ChevroletSilverado 1500RWD
2005ChevroletSilverado 1500RWD
2006ChevroletSilverado 1500RWD

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