Detroit Speed multi-leaf springs have a spring rate of 175 lb/in and lower your car 1.5 inches from stock. Our leaf springs are superior to others because of the great handling you receive without sacrificing ride quality. In addition, the spring is biased so the front spring section controls spring wrap during hard load conditions. The springs have a tapered leaf with an anti-friction pad between each leaf to help provide a smooth ride. Consider these upgrades when comparing to other leaf springs.
Details:
Fits Vehicles:
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 |
| Ford | Mustang | Boss 302 | 1969 - 1970 |
| Ford | Mustang | Boss 429 | 1969 - 1970 |
| Ford | Mustang | Grande | 1970 |
| Ford | Mustang | Mach 1 | 1970 |
| Ford | Mustang | Shelby GT-350H | 1966 |
| Ford | Mustang | Shelby GT-350 | 1965 - 1970 |
| Ford | Mustang | Shelby GT-500KR | 1968 |
| Ford | Mustang | Shelby GT-500 | 1967 - 1970 |
| Ford | Mustang | 1964 - 1970 |
| Chassis Codes | Ford Mustang 1964.5-1970 |
| Color | Black |
| Drop | 1.5 Inch |
| Finish | Painted |
| Location | Rear |
| Manufacturer Warranty | 2-Year Limited Defects and Workmanship |
| Material | Steel |
| Spring Rate | 175 Lbs |
| Vehicle Type | Car |