Composite Leaf Springs
Leaf Spring Suspension
Composite leaf springs are lightweight, high-performance aftermarket suspension springs used as an alternative to coil springs. Hyperco’s leaf springs are designed to be used on select Chrysler, General Motors, Camaro & Corvette applications. Our leaf spring suspension products:
- Reduce weight by up to 70%
- Resist corrosion
- Last up to 5x longer than traditional suspension spring solutions
Shop Our Leaf Spring Inventory
Leaf springs are an excellent replacement for traditional suspension springs in many applications. Our leaf spring suspension products are in-stock and available for rapid turnaround, with most orders shipping within 24 business hours.
Key Benefits of Composite Leaf Springs
- 70% lighter than steel
- Retain their designed arch, preventing sagging and chassis inconsistency
- Do not corrode
- Provide more side bite off the corners
- Customers report 5X plus the life of traditional steel leaf springs
How to Measure Composite Leaf Springs
To measure the arch of a leaf spring, place the spring on a flat surface with the arch up. Measure from the floor to the bottom of the spring (‘H’ in the diagram), and then subtract 3/4″ from the total length. For the Chrysler, the overall length (eye to eye) is 53 7/8″ and the pin-to-eye length is 20 1/2″ (‘L’ in the diagram). For the Chevrolet, the overall length (eye to eye) is 54″ and the pin-to-eye length is 25″ (‘L’ in the diagram).
Leaf Spring Configurations
Corvette Composite Leaf Springs
Hyperco’s Corvette Composite Leaf Springs enable the serious Corvette owner to select the suspension performance level they desire for their car. We offer two series for Corvettes:
The High-Performance Street Series (HPS) provides improved cornering ability, road feel, and initial response while maintaining a quiet and comfortable ride. Ride height adjusters, equipped with Delrin® pads, offer a wide range of tuning options. The enables owner to set the look and handling of the car to their preference…mild to aggressive.
The High-Performance Track Series (HPT) offers the owner a “race-ready” spring rate option for auto crossing, track days, and competitive racing. The Delrin® pad-equipped height adjusters support a wide range of setup choices, enabling the car to be tuned for all-out performance.
BASIC SPECIFICATIONS
- Year(s): 1968-2007
- Spring Rates: 180#/in to 850#/in
- Material: Proprietary epoxy matrix “composite” construction
- Finish: Hyperco dark blue
PRODUCT TYPES
High-Performance Street Series
- C3 Corvette – Rear
- C4 Corvette – Rear
- C5 Corvette – Front / Rear
High-Performance Track Series
- C5 Corvette – Front / Rear
- C6 Corvette – Front / Rear
APPLICATIONS
- EZ Ride, Base, Performance, Track
Chrysler Style Composite Leaf Springs
BASIC SPECIFICATIONS
- Length (Eye to Eye): 53 7/8″
- Front Bolt: 9/16″
- Rear Bolt: 1/2″
- True Arch: 4 1/2″
- Spring Rates: 150#/in to 225#/in
- Material: Proprietary epoxy matrix “composite” construction
- Finish: Hyperco dark blue
APPLICATIONS
- Motorsports: Street Stock, Modified Racecars
- Street Performance: Street Cars, Hot Rods
General Motors Style Composite Leaf Springs
BASIC SPECIFICATIONS
- Length (Eye to Eye): 54″
- Front Bolt: 9/16″
- Rear Bolt: 1/2″
- True Arch: 4 1/2″
- Spring Rates: 150#/in to 250#/in
- Material: Proprietary epoxy matrix “composite” construction
- Finish: Hyperco dark blue
APPLICATIONS
- Motorsports: Street Stock, Modified Racecars
- Street Performance: Street Cars, Hot Rods
Tips for Using Leaf Springs for Suspension
Here is the list of the most common tips we have given our customers concerning the use of Composite Leaf Springs:
- U-bolts should never come in contact with the composite portion of the leaf spring. Hyperco recommends a heavy gauge rubber or plastic hose be fitted over the U-bolts to ensure that there is no metal to composite contact.
- U-bolts should be tightened evenly to a torque value of 80 to 100 ft. lbs., or until the center mounting plate yields / deflects. The torque value should be checked on a regular basis to ensure adequate and consistent clamping force.
- The mounting pad must extend a minimum of ¼” past the steel mounting plate.
- Additional protection for the composite leaf can be obtained by wrapping all exposed surfaces with high-quality duct tape.
- When installing springs it is important to check the alignment. The inner sleeves must not bind inside the spring bushings on both the front and rear mounting brackets.
Looking for installation instructions? Visit our Composite Leaf Spring Installation page.
Need Help with Installation?
Visit our Composite Leaf Spring Installation page for more details.