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SKU: R230-250 | UPC: 806990156365
QA1 73-87 Chevy C10 Rear Suspension Conversion System - Firm - GM 10 Bolt - Double Adj. (250lbs/in)
This bolt-in rear suspension conversion system upgrades 1973-1987 Chevy C10 and C20 2WD trucks with a torque arm design that controls movement precisely for smooth ride quality and sharp handling. Engineered without 4-link binding issues it fits GM 10-bolt axles and requires no bed removal. Adjustable coil-overs allow 4 to 7 inches of drop below stock height for custom stance.
Key Features
- Bolt-in Torque Arm Design: Provides precise suspension control and eliminates binding common in 4-link setups for consistent performance on street or track.
- Double Adjustable Coil-Overs: Firm 250 lb/in springs with independent rebound and compression damping adjustments for tailored ride and handling.
- Ride Height Adjustment: Threaded spring seats offer 4 to 7 inches of drop below stock easily set perfect stance paired with QA1 front systems.
- Complete Kit: Includes torque arm crossmember coil-overs control arms hardware and bushings everything needed for installation.
- USA Made Dyno Tested: All parts manufactured in Lakeville Minnesota with shocks serialized and 100% dyno tested for reliability.
Product Notes
- Designed for Fleetside beds on 2WD trucks stock frame width required.
- Compatible with GM 8.5-inch 10-bolt rear axles 30-spline axles recommended.
- Shipping weight 158 lbs packaged securely to prevent damage.
Installation Notes
- Professional installation recommended.
- Bolt-on using factory frame locations no welding or frame cutting needed.
- Requires removal of stock leaf springs and shocks verify axle width compatibility.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1973-1987 | Chevrolet | C10 Pickup | 2WD Fleetside |
| 1973-1987 | Chevrolet | C20 Pickup | 2WD Fleetside |
| 1973-1987 | GMC | C1500 Pickup | 2WD Fleetside |
| 1973-1987 | GMC | C2500 Pickup | 2WD Fleetside |
Why Choose QA1?
- Decades of expertise in motorsports suspension for trucks.
- High-strength components ensure long-term durability under heavy loads.
- Precision engineering delivers repeatable performance dyno-verified.
Frequently Asked Questions
-
Q: Does this fit stepside beds or 4WD trucks?
A: Fits only 2WD Fleetside beds 1973-1987 C10/C20 C1500/C2500 no stepside or K-series 4WD. -
Q: What adjustments do the coil-overs offer?
A: Double adjustable with 24-position rebound and 16-position compression knobs plus threaded height adjustment 4-7 inches drop. -
Q: What is the warranty coverage?
A: Limited lifetime warranty on components one-year on shocks against manufacturing defects.
Shipping & Handling
- Method: UPS Freight
- Availability: In stock - ships same or next business day
- Packaging: Single oversized box 48in L x 20in W x 16in H
- Weight: 158 lbs
QA1
Shop All QA1 Coilovers, Shocks, Springs, Handling Kits & Suspension Components Browse premium QA1 suspension parts and performance components at Black Ops Auto Works, including coilover kits, shock absorbers, lowering kits, handling kits, suspension conversion systems, four-link systems, springs, struts, rod ends, linkage rods, tube adapters, and suspension hardware for muscle cars, trucks, street builds, drag cars, and pro-touring applications. QA1 is one of the most recognized names in the suspension category, known for engineering products that improve ride quality, adjustability, handling, weight transfer, and overall vehicle control. Why Choose QA1 Suspension Products QA1 products are built for enthusiasts looking to improve suspension performance on classic, street, strip, and performance truck platforms. Popular reasons customers choose QA1 include: Adjustable suspension tuning for street and track use Improved handling, ride control, and weight transfer Vehicle-specific...
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