C6 Corvette QA1 Mod Series Pro Coil Shocks - Rear 550LB
C6 Corvette (2005–2013) QA1 Rear Pro Coil-Over System RCK52474
Transform the rear suspension of your 2005–2013 C6 Corvette with the QA1 Rear Pro Coil-Over System RCK52474. This MOD-Series system replaces the factory transverse rear leaf spring with a modern, fully adjustable coil-over configuration that dramatically improves stability, cornering precision, and suspension control. If you’ve ever wondered whether a C6 can feel more planted, predictable, and responsive — this conversion delivers exactly that.
About the C6 Coil-Over Conversion
C6 Corvettes use a composite transverse leaf spring from the factory. This coil-over system fully eliminates that assembly and replaces it with a dedicated spring-and-damper unit at each rear corner. The result is a suspension layout much closer to modern performance cars — tunable, responsive, and engineered for dramatically improved balance.
QA1 Rear Pro Coil-Over Shock System Details
This coil-over system includes heavy-duty springs, adjustable hardware, and performance dampers built specifically around the C6 rear suspension geometry. You gain ride-height adjustability, firmer rear-end control, and reduced squat under throttle. Installation uses the OEM mounting points, so no welding or fabrication is required despite the fact that the leaf spring is removed entirely.
Why QA1 Leads in Corvette Suspension Upgrades
QA1 has decades of engineering experience developing high-performance suspension systems for GM vehicles. Their MOD-Series coil-overs bring modern suspension behavior to the C6 platform, combining durability with superior handling gains. Unlike stock components, coil-overs allow precise control of how the car sits, reacts, and manages weight transfer.
Benefits of QA1 Rear Pro Coil-Over for C6 Corvette
- Replaces the factory transverse leaf spring with a modern, tunable coil-over suspension
- Adjustable ride height for stance and weight-balance optimization
- Improved rear-end traction during launch, braking, and corner exit
- Reduced squat and wheel hop under aggressive acceleration
- More predictable and stable handling across varying road conditions
- Corrosion-resistant components for long-term durability
- Direct-bolt installation using factory attachment points
What to Expect After Install
- A more planted rear end with improved road feedback
- Smoother, more controlled damping over uneven pavement
- A noticeable increase in stability during high-speed transitions
- Balanced weight transfer and better cornering grip
- Ride height adjustment for performance or aesthetics
Technical Specifications
- Part Number: RCK52474
- Shock Type: MOD-Series Rear Coil-Over
- Spring Rate: 550 lb
- Spring Length: 7 in
- Shock Travel: 10.875"–15.75"
- Material: Corrosion-resistant steel
- Placement: Rear
- Adjustability: Ride height
Installation Overview
This upgrade installs using factory mounting points. The factory composite rear leaf spring is removed during installation, replaced entirely by the coil-over system.
- Direct bolt-on installation
- No welding or fabrication required
- Basic hand tools recommended
- Professional alignment recommended
- Install time: 2–4 hours
Corvette Compatibility
- 2005–2013 C6 Corvette (Coupe & Convertible)
- Rear coil-over conversion
- Fits base, Grand Sport, and non-Z06 models
Cross-Compatibility & Related Fitment
- Replaces the entire rear leaf-spring assembly
- Pairs best with QA1 front shocks or coil-overs
- Compatible with all factory control arms and knuckles
- Not compatible with transverse leaf-spring retainers or lowering bolts
- Recommended supporting upgrades: sway bars, poly bushings
What Corvette Owners Say:
“The QA1 coil-overs transformed my C6. The rear feels planted, stable, and so much more predictable. Ride quality is better than stock, even lowered.”
Explore more suspension upgrades in our Corvette Suspension Collection
Since 2007, Custom Corvette Accessories has delivered Corvette-specific performance upgrades with fast nationwide shipping and enthusiast-level support.
Upgrade your C6 with the QA1 Rear Pro Coil-Over System RCK52474 today and unlock modern suspension performance.