Click to zoom in
QA1 R257-170S is a double-adjustable rear four-link system with an original-width nine-inch axle housing for supported 1970-1981 Chevrolet Camaro and Pontiac Firebird applications. It includes 170-pound-per-inch springs and independently adjustable coil-over damping. Confirm axle options, brakes, differential, driveshaft, wheel clearance, and exact package before ordering.
Key Features
- Rear four-link conversion
- Double-adjustable coil-over shocks
- Original-width nine-inch axle housing
- 170-pound-per-inch springs
- Adjustable link geometry
- Application-specific crossmember and brackets
Fitment
Fits supported 1970-1981 Chevrolet Camaro and Pontiac Firebird applications. Axle center section, brakes, and other build-specific components must be confirmed separately.
Specifications
| Brand | QA1 |
|---|---|
| Manufacturer Part Number | R257-170S |
| Position | Rear |
| Adjustment | Double adjustable |
| Spring Rate | 170 pounds per inch |
| Axle Housing | Nine inch, original width |
| UPC or GTIN | 806990230638 |
What's Included
One QA1 R257-170S rear four-link package with the original-width nine-inch housing, links, brackets, double-adjustable shocks, springs, and specified hardware.
About QA1
QA1 manufactures automotive performance and replacement components. Match the exact manufacturer part number and published application details before installation.
Related QA1 Products
- QA1 03-11 Ford Crown Victoria Pro Front Coil-Over System - Single Adj. - 9in x 450lbs/in - Aluminum
- QA1 03-11 Ford Crown Victoria Pro Front Coil-Over System - Single Adj. - 9in x 550lbs/in - Aluminum
- QA1 03-11 Ford Crown Victoria Pro Front Coil-Over System - Single Adj. - 9in x 650lbs/in - Aluminum
- Shop all QA1 products
Frequently Asked Questions
Why is this price above the common advertised price?
The store's recorded cost makes the common price fall below the hard 10 percent gross-margin floor.
Is the differential center section included?
Confirm the exact QA1 package contents because build-specific axle components may be separate.
Are the shocks double adjustable?
Yes. R257-170S uses double-adjustable rear coil-over shocks.
Installation Instructions
Installation should be completed by a qualified technician using the current manufacturer instructions. Verify the vehicle or system application, inspect every supplied component, follow the specified fastener and torque procedures, check clearances and routing, and confirm safe operation before driving.
QA1
Shop QA1 coilovers, shocks, springs, control arms, sway bars, suspension systems, rod ends, bearings, steering components, and chassis hardware by exact part number and verified compatibility. Choosing the Correct QA1 Product Match the complete year, make, model, suspension configuration, and mounting position when vehicle fitment is listed Verify dimensions, thread size and direction, bore, travel, spring rate, load, and mounting style for interface-based components Confirm drivetrain, brake, wheel, tire, exhaust, and chassis clearance before ordering Review the current QA1 application data and installation instructions for the exact part number Related QA1 Products All QA1 Products QA1 High Travel Coilover Spring QA1 C Series Rod End QA1 Proma Star Coilover Shock Frequently Asked Questions How do I confirm a QA1 product fits my vehicle?Match the listed year, make, model, and submodel, then verify suspension configuration, mounting position, dimensions, drivetrain clearance, b...
View QA1 Products
Suspension
Suspension parts and complete kits for cars, trucks, SUVs, Jeeps, and off-road builds are stocked at Black Ops Auto Works. Shop coilovers, lowering springs, lift kits, leveling kits, shocks and struts, sway bars, control arms, tie rods, ball joints, bushings, chassis bracing, alignment hardware, air suspension, and complete stage kits from Bilstein, KW, Ohlins, Fox, KING, ICON, BC Racing, Silvers, Eibach, H&R, Swift Springs, Whiteline, Energy Suspension, Moog, SPC Performance, Rough Country, ReadyLIFT, BDS, Skyjacker, Air Lift, Firestone, and Black Ops Auto Works. Start with a matched shock and spring package or a full coilover kit, then layer in sway bars, chassis bracing, and camber adjustment hardware. Every part is filterable by year, make, model, trim, and drivetrain to confirm fitment before ordering. What This Category Covers Suspension is the highest-leverage handling upgrade on any vehicle. A properly matched shock, spring, and sway bar package produces measurable i...
View Suspension Products
Suspension Packages
Complete suspension packages for street, track, truck, SUV, and off-road builds are stocked at Black Ops Auto Works. Shop matched coilover packages, sport lowering kits, lift and leveling systems, shock packages, handling kits, control arm packages, and staged suspension upgrades for cars, trucks, Jeeps, SUVs, and performance vehicles. Every product is filterable by year, make, model, trim, drivetrain, and suspension configuration. This collection spans Mustang, Camaro, Corvette, GM truck, Ford truck, Jeep, Toyota truck and SUV, European sport compact, and domestic performance applications. What This Suspension Packages Collection Covers Matched component systems Suspension packages pair components engineered to work together, which simplifies planning and reduces the risk of mixing incompatible parts. They can include coilovers or shocks, springs, control arms, sway bars, endlinks, alignment parts, and lift hardware. Street and Sport Lowering Packages Balanced handling and ride...
View Suspension Packages Products