State of the Art Heat Treatment, High-Intensity Shot Peened
Formed on Precision Mandrels, Precise End Configurations
Durable Powder Coat Finish
3.0" Lift Long Travel Variable Rate Rear coils - Toyota 4Runner 2003 to 2019 with 600LBS Constant Accessory Load ***Not to be used on KDSS vehicles, it provides too much lift. Dobinsons Spring & Suspension™ proudly manufactures the highest quality replacement coil springs for many different applications, complying with ISO9001:2008 international quality standards from their state-of-the-art manufacturing facility in Central Queensland, Australia. Dobinsons™ proudly boasts one of the world's largest range of coil springs, including raised height and heavy-duty 4WD springs, lowered performance passenger car springs, O.E. replacement springs, and heavy-duty springs for commercial vehicles. All Dobinsons™ coil springs are load tested and scragged 100% to eliminate subsequent spring sag, and ensure they meet and maintain the required specifications. We also perform spring fatigue and hardness testing using in-house state-of-the-art testing equipment. Our design engineers utilize the latest coil spring design programs to ensure each spring meets or exceeds the design requirements, to achieve maximum working life. These state-of-the-art design programs are crucial when designing variable/progressive rate springs, ensuring laden and unladen spring rates are correct, providing the best possible ride comfort and handling.