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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