Heavy Duty Rear Coil Springs (400 lbs)

The Dobinsons C29-029 coil springs are a premium aftermarket suspension upgrade, fully designed, manufactured, and finished in Australia. Utilizing ultra-modern design technology, these springs are fully scragged and load-tested to ensure they meet and maintain required specifications. They undergo state-of-the-art heat treatment and high-intensity shot peening for enhanced durability. These coil springs are specifically engineered to suit the Jeep Grand Cherokee WK models from 2005 to 2010 and Jeep Commander models from 2006 to 2010. They are designed for vehicles carrying heavy accessory weight, up to 400 lbs, and provide approximately a 1.75-inch lift with this constant load. Dobinsons manufactures its coil springs to ISO9001:2008 international quality standards at their facility in Central Queensland, Australia. Dobinsons boasts one of the world's largest ranges of coil springs, including options for raised height and heavy-duty 4WD applications, lowered performance passenger cars, O.E. replacements, and heavy-duty commercial vehicles. The design engineers employ advanced coil spring design programs, crucial for developing variable/progressive rate springs that ensure correct laden and unladen spring rates for optimal ride comfort and handling. All springs are load tested and 100% 'scragged' to eliminate subsequent sag and maintain specifications.