This is a great way to upgrade from original leaf spring suspension. Unlike our competitors, Detroit Speed's exclusive new 4-link geometry design is uncompromised to achieve the best possible handling. The Detroit Speed Swivel-Link (Patent No. 7,398,984) allows the suspension to fully articulate with smooth solid motion an no binding. The best feature is that this is achieved without heim-joints.
Heim-joints are noisy and prone to short-term life. The Detroit Speed Quadralink utilizes tuned high-durometer rubber bushings (in place of heim joints or squeaky urethane bushings). The long upper links provide great pinion and u-joint angle control. Contrary to competitors' kits, our kit utilizes a panhard rod that provides precise and effective rear axle lateral location during hard cornering. The panhard rod is adjustable as ride height changes for roll center control.
The rear upper shock crossmember strengthens the rear body and frame section. Don't settle for anything less than our Quadralink rear suspension!
Details:
Fits Vehicles:
Quadralink Features:
Double Adjustable Shock:
Note:
Detroit Speed puts a significant amount of effort into developing long-lasting, dependable products that are formulated to exceed late-model performance expectations. Our systems are designed by exceptionally qualified engineers and built by fabricators dedicated to making the best systems they possibly can. Our parts are made using state-of-the-art manufacturing technologies–CNC machining, forging, hydroforming, and more–to bring your classic muscle car to the 21st century.
Months of testing, revising, and polishing stand behind every product we make available to the public, and our test cars prove the point. Each of our development mules receive thousands of hard miles attending car shows, completing road trips, crushing autocross paddocks, and storming track days in the process. The pursuit of perfection has always been our primary goal, and it always will be. Because of this, we can confidently say our systems are the best, most comprehensive solutions to any and all your muscle car problems.
| Make | Model | Submodel | Years |
| Pontiac | Firebird | Esprit | 1970 - 1981 |
| Pontiac | Firebird | Formula | 1970 - 1981 |
| Pontiac | Firebird | Trans Am | 1970 - 1981 |
| Pontiac | Firebird | 1970 - 1981 |
| Adjust Type | Double Adjustable |
| Axle Tube | 3.0 Inch |
| Color | Black/Silver |
| Finish | Bare/Powdercoat |
| Location | Rear |
| Manufacturer Warranty | 2-Year Limited Defects and Workmanship |
| Material | Steel |
| Series | Quadralink |
| Spring Free Length | 8.0 Inch |
| Spring Rate | 250 Lbs |
| Vehicle Type | Car |
