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Full assembly view of QA1 single adjustable rear suspension kit for 1999-2006 Chevy Silverado 1500 short bed showing coil-over springs, trailing arms and torque arm
Close-up view of QA1 single adjustable coil-over shock and bracket in the rear suspension kit for 1999-2006 Chevy Silverado 1500 short bed
Angled view of QA1 single adjustable coil-over shock with mounting bracket and crossmember in the rear suspension kit for 1999-2006 Chevy Silverado 1500 short bed
Close-up of QA1 torque arm bracket pivot with rod end in the rear suspension kit for 1999-2006 Chevy Silverado 1500 short bed
Detailed close-up of QA1 torque arm bracket pivot and rod end for 1999-2006 Chevy Silverado 1500 short bed rear suspension kit
View of QA1 torque arm, trailing arms and adjustable panhard bar assembled in rear suspension kit for 1999-2006 Chevy Silverado 1500 short bed
Installed view of QA1 single adjustable coil-over shock and mounting brackets in the rear suspension kit for 1999-2006 Chevy Silverado 1500 short bed
Under-chassis view of QA1 rear suspension kit showing torque arm, trailing arms, crossmember, and coil-over installation on 1999-2006 Chevy Silverado 1500 short bed
Out-of-package view of QA1 single adjustable rear suspension kit components including coil-over shocks, torque arm, trailing arms, crossmember, and panhard bar for 1999-2006 Chevy Silverado 1500 short bed
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QA1 99-06 Chevy Silverado 1500 Short Bed Single Adjustable Rear Suspension Kit

QA1
QAPR145-200
806990233653
Suspension Packages
Out of stock
$ 3,097.46 $ 2,795.95

SKU: R145-200 | UPC: 806990233653

QA1 Single Adjustable Rear Shock Kit - 1999-2006 Chevrolet Silverado 1500 / GMC Sierra 1500 Short Bed (6.5' Bed)

QA1 R145-200 single adjustable rear shock kit replaces factory shocks on 1999-2006 Chevrolet Silverado 1500 and GMC Sierra 1500 short bed trucks. Fully adjustable monotube shocks offer 18 clicks of rebound damping adjustment on the fly for tuned ride quality across lowered stock or lifted setups. Vehicle-specific valving in 6061-T6 aluminum bodies provides consistent control reduced body roll and direct bolt-on installation with factory leaf springs.

Key Features

  • Single Adjustable Design: 18 clicks of rebound adjustment tunes from soft daily driving to firm track handling without tools.
  • Monotube Construction: 2-inch OD 6061-T6 aluminum body with bright anodized finish dissipates heat for sustained performance.
  • Sealed Hyperscrew Adjustment: Threaded preload ring delivers clean aesthetics and reliable damping changes.
  • Deflective Disc Valving: Delivers progressive damping with blow-off protection for potholes and jumps.
  • Polyurethane Bushings: 1/2-inch or 5/8-inch ID bushings with sleeves match OEM mounts for quiet operation.
  • Rebuildable Design: Serviceable with QA1 factory revalving support for long-term use.

Product Notes

  • Part number R145-200 fits rear pair on short bed models only extended length 24.5 inches compressed 15.5 inches.
  • Compatible with factory or aftermarket rear springs and leaf packs for stock lowered or lifted heights.
  • Kit includes two shocks adjustment tool and mounting hardware weight per shock 8-10 lbs pair approximately 20 lbs.

Installation Notes

  • Direct bolt-on replacement requires no modifications or fabrication.
  • Professional alignment recommended after any ride height changes.
  • Adjustment tool included rotate preload ring clockwise for firmer damping typical install time 1-2 hours.

This Part Fits

Year Make Model Submodel
1999-2006 Chevrolet Silverado 1500 Base, Hybrid, LS, LT, SS, WT, Z71 Off-Road (6.5' Short Bed)
1999-2006 GMC Sierra 1500 Base, C3, Denali, HT, Hybrid, SL, SLE, SLT, WT (6.5' Short Bed)

Why Choose QA1?

  • Industry leader in adjustable shocks for trucks and performance vehicles.
  • Single adjustable design enables quick on-vehicle tuning without disassembly.
  • Lifetime warranty covers defects for dependable long-term ownership.

Frequently Asked Questions

  • Q: Does this fit long bed trucks?
    A: No R145-200 fits short bed 6.5 feet only long bed models require different QA1 part number.
  • Q: Is compression damping adjustable?
    A: No this is single adjustable rebound damping which provides the most impact on ride control and handling.
  • Q: Does this kit lower the truck?
    A: No it maintains factory ride height pair with QA1 coilovers or drop shocks for lowering applications.

Shipping & Handling

  • Method: Standard ground shipping
  • Availability: In stock - ships same or next business day
  • Packaging: Box dimensions approximately 30" × 12" × 8"
  • Weight: Approximately 25-30 lbs

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