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30-Day Startup Warranty
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Auto Parts & Accessories
QA1 1988-98 C1500 Front and Rear Coilover Conversion Systems HK02-OBS1
$2,838.91
+ $295.00 flat-rate insured LTL freight
(details)
$3,133.91 delivered to the continental US
- Palletized and heavy shrink-wrapped for freight
- LTL carrier delivery with optional liftgate service
- Ships in 1–2 business days from Los Angeles, CA
- Transit typically 3–7 business days, continental US
Secure checkout by Stripe
Need a matched transmission, controls or wiring package? Speak with a parts specialist.
Details & Inspection Notes
QA1 1988-98 C1500 Front & Rear Coilover Conversion System
The QA1 1988-98 C1500 Front & Rear Coilover Conversion System (HK02-OBS1) is a complete bolt-in suspension package designed to transform your truck’s handling, ride quality, and overall performance. With adjustable coilover shocks, tubular control arms, and a rear torque arm, this system eliminates the factory leaf springs and provides greater stability, adjustability, and comfort.
No welding or bed removal requiredeasily installs in factory mounting locations for a stress-free upgrade!
Enhanced stability, precise camber control, and performance-focused suspension geometry!
What’s Included in the Kit?
QA1 Single Adjustable Coilover Shocks (Front & Rear)Tune your ride with adjustable compression & rebound
Front Coil SpringsChoose the ideal spring rate for your driving needs
Rear Coil SpringsEngineered for optimum ride quality & load capacity
Tubular Front Control Arms (Upper & Lower)Stronger, lighter, and designed for precise alignment & handling
Rear Torque Arm Suspension SystemImproves rear-end stability and eliminates wheel hop
Panhard BarEnsures proper rear axle alignment in all driving conditions
Front Sway BarReduces body roll and enhances cornering performance
Black Powdercoated Steel ConstructionDurable, corrosion-resistant finish for long-lasting strength
Polyurethane BushingsLow friction, maintenance-free, and built for smooth operation
Full Hardware KitIncludes everything needed for installation
Engineered for street, performance, and pro-touring applications!
Technical Specifications
| Feature | Details |
|---|---|
| Brand | QA1 |
| MFG. Part # | HK02-OBS1 |
| Product Type | Front & Rear Coilover Conversion System |
| Front Coil Springs Included? | Yes |
| Rear Coil Springs Included? | Yes |
| Shocks Included? | Yes, Single Adjustable Coilovers (Front & Rear) |
| Control Arm Style | Tubular |
| Upper Control Arms? | Yes |
| Lower Control Arms? | Yes |
| Control Arm Material | Steel, Powdercoated Black |
| Rear Torque Arm? | Yes |
| Rear Panhard Bar? | Yes |
| Front Sway Bar? | Yes, Black Powdercoated |
| Bushing Material | Polyurethane |
| Mounting Hardware Included? | Yes |
| Installation Type | Bolt-On, No Welding Required |
| Fitment | 1988-1998 Chevy/GMC C1500 Pickup Trucks |
Significantly improves your truck’s handling, ride comfort, and performance!
Fitment & Compatibility
Designed for 1988-1998 Chevrolet & GMC C1500 Trucks
Direct bolt-in replacement for stock suspension
Perfect for lowered or performance-built trucks
Ideal for street cruising, performance handling, and pro-touring builds.
Installation Notes & Tips
Bolt-On Installation, No Welding or Bed Removal Required
Utilizes Factory Mounting Locations for Easy Fitment
Ensure Proper Alignment After Installation for Best Performance
Professional Installation Recommended for Best Results
After installation, a proper alignment is required to achieve optimal handling and tire wear!
Frequently Asked Questions (FAQ)
How does this kit improve handling?
- The QA1 coilover system eliminates the factory leaf springs and replaces them with a torque arm and coilovers, which dramatically improves stability, ride comfort, and adjustability for better cornering and overall control.
Can I adjust the ride height?
- Yes! The QA1 coilovers are height-adjustable, allowing you to fine-tune your truck’s stance for a more aggressive or custom look.
Is this a direct bolt-on kit?
- Yes! This kit requires no welding or cutting and bolts directly into the factory locations.
Can this be used on a daily driver?
- Absolutely! The single adjustable coilovers provide a comfortable ride for daily driving, while still offering performance tuning for spirited driving and track use.
Do I need to modify my truck bed?
- No modifications to the truck bed are necessary. The kit bolts into place without requiring bed removal.
Call to Action, Upgrade Your C1500 Suspension Today!
Take your 1988-98 Chevy/GMC C1500 to the next level with QA1’s front & rear coilover conversion system!
Superior Handling & Performance-Driven Suspension Geometry
Fully Adjustable Coilovers for Ride Height & Damping Control
Bolt-On Installation, No Welding or Bed Removal Required
Perfect for Pro-Touring, Street Performance, & Daily Driving
Order Now & Transform Your Truck’s Handling!
OverviewBrand:
QA1
Manufacturer’s Part Number:
HK02-OBS1
Part Type:
Suspension Handling Packages
Product Line:
QA1 1988-98 C1500 Front and Rear Coilover Conversion Systems
Summit Racing Part Number:
QA1-HK02-OBS1
UPC:
806990158901
Front Coil Springs Included:
Yes
Rear Coil Springs Included:
Yes
Rear Leaf Springs Included:
No
Front Shocks/Struts Included:
Yes
Front Shock Type:
Single adjustable coilover
Rear Shocks/Struts Included:
Yes
Rear Shock Type:
Single adjustable coilover
Front Sway Bar Included:
Yes
Front Sway Bar Color:
Black
Rear Sway Bar Included:
No
Tie Rod Sleeves Included:
No
End Link Bushings Included:
No
Rear Leaf Spring Bushings Included:
No
Sway Bar Bushings Included:
No
Upper Trailing Arms Included:
No
Lower Trailing Arms Included:
Yes
Trailing Arm Mount Braces Included:
No
Panhard Bar Included:
Yes
Torque Arm Included:
Yes
Upper Control Arms Included:
Yes
Lower Control Arms Included:
Yes
Control Arm Style:
Tubular
Control Arm Material:
Steel
Control Arm Color:
Black
Front Strut Tower Bar Included:
No
K-Member Included:
No
K-Member Support Brace Included:
No
Rear Strut Tower Bar Included:
No
Subframe Connectors Included:
No
Chassis Stiffener Included:
No
Calipers Included:
No
Rotors Included:
No
Brake Pads Included:
No
Brake Lines Included:
No
Wheel Studs Included:
No
Center Link Included:
No
Spindles Included:
No
Inner Tie Rod Ends Included:
No
Outer Tie Rod Ends Included:
No
Bushing Material:
Polyurethane
Bushing Color:
Black
Mounting Hardware Included:
Yes
Quantity:
Sold as a kit.
Notes:
Mounts in factory location.
Startup & Installation Checklist
- Replace timing components, water pump and plugs before initial startup where applicable.
- Refill all fluids with manufacturer-specified oil and coolant.
- Verify sensors, ECU pinouts and grounds against your chassis or hull wiring.
- Startup warranty covers heads, block and internal lubricated components for 30 days from delivery.
Full terms: 30-day startup warranty · returns
