MIDWEST MOTORS

DRIVING THE HEARTLAND • EST. 2024

The Landrum Springs I400 Gold Series Rear Coil Spring is a premium, dyno-tested suspension component engineered for the demanding environments of circle track and pavement racing. Constructed from high-tensile chrome silicon alloy steel, this spring provides unmatched consistency and durability for competitive performance.

Key Features

• ✦ Chrome Silicon Steel: Cold-wound from the highest grade material for superior fatigue resistance.
• ✦ Dyno-Tested Consistency: Each spring is individually tested and includes a dyno sheet to ensure a true linear rate.
• ✦ Precision Manufacturing: Closed and ground ends ensure squareness and optimal contact with spring seats.
• ✦ Protective Finish: Gold powder coating prevents hydrogen embrittlement and corrosion.
• ✦ High Travel Design: Engineered to provide maximum travel without losing free height.

Technical Specifications

Compatibility

Universal fitment for various racing chassis including:

• Dirt and Pavement Modifieds
• Late Model Race Cars
• Street Stock / Hobby Stock (GM-style rear setups)
• Custom Racing Suspensions with 5" Spring Cups

OEM Cross-Reference

• Hyperco 10B0400
• QA1 510-400
• Eibach 1050.500.0400