Rear Coil Springs in Black with 387 lbf/in Spring Rate for Toyota 4Runner (2003–2024) - Pair

Old Man Emu engineers vehicle-specific coil springs to address the increased demands of remote travel and sustained heavy loads. Additional fuel, water storage, spare parts, rear bumpers, and recovery equipment place continuous stress on factory suspension systems. These rear coils are tuned to maintain composure and ride height while improving control under substantial rear weight.

Microalloyed spring steel provides strength and fatigue resistance under constant load. Each coil is formed on computer-controlled precision mandrels for dimensional accuracy and consistent rates. Double scragging reduces internal stress and supports long-term structural integrity.

Vehicle-specific calibration ensures proper seating within factory spring perches and predictable suspension geometry. A 387 pound per inch spring rate is intended for builds with significant rear weight. Compatibility with Old Man Emu shock absorbers supports balanced damping and control.

Engineered for demanding off-road use, these coils withstand repeated compression cycles and sustained cargo weight. Microalloyed construction helps resist sag over time. A durable black powder-coated finish protects against corrosion and environmental exposure.

Precision manufacturing enables direct fitment to original mounting locations on the 4Runner platform. Proper installation maintains intended ride height and alignment. Professional installation is recommended for optimal system performance.