250-300 lb Progressive Coilover Spring Set 10" Tall 2.5" ID Silver Steel for 337 Shock HEXSHX1337 Hot Rod Street Rod Custom Car Adjustable Performance Suspension

250-300 lb Progressive Coilover Spring Set 10" x 2.5" ID for 337 Shock

Helix Suspension Brakes and Steering | HEXSPR64337300B | SKU: 311752
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Description

Upgrade or replace the springs on your compatible Helix coilover shocks with these progressive-rate coilover spring sets. Designed to fit the HEXSHX1337 337 Shock Pro, each spring measures 10" (255mm) tall with a 2.5" (62.5mm) inside diameter.

The progressive design provides a spring rate that increases as the spring compresses, offering a softer initial response with increased resistance as suspension load and compression increase. Choose between 180-230 lb and 250-300 lb spring rates to match your suspension setup and desired performance.

Finished in silver steel, these coilover springs are designed for hot rods, street rods, custom cars, restomods, and compatible performance suspension applications.

Available Spring Rates:
• 180-230 lb Progressive
• 250-300 lb Progressive

Specifications:
• Style: Coilover Spring
• Spring Type: Progressive
• Available Ratings: 180-230 lb or 250-300 lb
• Height: 10" / 255mm
• Inside Diameter: 2.5" / 62.5mm
• Fits: HEXSHX1337 337 Shock Pro
• Finish/Color: Silver Steel
• Quantity: Spring Set

Key Features & Benefits:
• Progressive-rate coilover spring design
• Available in 180-230 lb and 250-300 lb ratings
• Increasing resistance as the spring compresses
• 10" tall with 2.5" inside diameter
• Designed for HEXSHX1337 337 Shock Pro
• Ideal for replacement or suspension tuning
• Suitable for hot rods, street rods, restomods, and custom suspension builds

Important: Spring rate affects ride height, suspension travel, handling, and ride characteristics. Select the appropriate spring rate for your vehicle weight and suspension setup. Verify shock compatibility, dimensions, spring rate, and other specifications before ordering.

Features

Style :: Coilover Spring
Progressive :: YES
Weight :: 250-300 lb
Fits :: HEXSHX1337
I.D. :: 62.5mm / 2.5”
Height :: 10”
Color :: Grey

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