Automotive Parts

Mustang II Front Coil-Over Dual Adjustable Shocks Kit - 600 lbs. Spring Rate

Part No.: FR70003

Warranty: 2 years


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This Mustang II Front Coil-Over Shock System includes two (2) lightweight, aluminum dual adjustable shocks, and two (2) lightweight, high-travel springs, plus hardware. Each system allows for independent adjustment of the compression and rebound settings and are available in a variety of spring rates for various driving styles including cruising, road racing and drag racing. All shocks and springs are Made in the USA.



  • Lightweight, aluminum twin-tube design with a sleek clear anodized finish.
  • Independently adjust the compression and rebound: 19 positions of compression and 19 positions of rebound adjustments allow for a total of 361 different valving combinations.
  • Machined aluminum piston with deflective disk technology and a PTFE / bronze piston seal.
  • 5/8” centerless ground hard chrome-plated piston rod.
  • Advanced three-step sealing system.
  • Variety of custom or stock mount styles available.
  • Each shock is factory Dyno tested and serialized.



  • Ultra-lightweight, high travel springs engineered with an expanded body diameter for unsurpassed performance.
  • Up to 25% weight savings over similar springs on the market.
  • High-tensile spring steel with a chrome plate finish.
  • Cold wound, heat treated and shot peened; ground at both ends; manufactured to precision tolerances.
  • Available in a wide variety of spring rates.
  • Lifetime guaranteed to remain within 2% of the original free height and rate.


Shocks, Springs and Accessories are special order and non-returnable.

Tube Style: Twin Tube

Material: Aluminum

Adjustability: Dual Adjustable

Top Mount: Stud-Bushing

Bottom Mount: Bearing

Recommended Ride Height: 9" - 9-5/8"

Compressed Height: 7.64"

Extended Height: 10.98"

Kit Includes: 2 shocks and hardware, 2 springs

Finish: Chrome Plated

Spring Rate: 600 lbs.

Shipping Weight: 18.86lbs.

Shipping Dimensions: 18.25” x 15.5” x 5.5”

Automotive Parts

Mustang II Front Coil-Over Dual Adjustable Shocks Kit - 600 lbs. Spring Rate - FR70003 - 940 - 5920