This is the Firestone 2304 Sport-Rite Rear Air Helper Spring Kit, designed to install between the rear suspension and frame of Toyota Tacomas from 1995 to 2004, including both 2WD PreRunners and 4WD models. The kit provides air springs, brackets, hardware, air lines, and inflation valves—just add air pressure to adjust load support.
Constructed with premium rubber air springs featuring a tapered sleeve design, this Sport-Rite model is engineered to tolerate up to 3,000 pounds of load support per set when properly inflated. It accommodates air pressures between roughly 10 to 100 PSI and uses vehicle-specific mounting brackets and hardware to ensure factory-like fit and function.
With real-world benefits like improved ride quality even when towing or hauling, reduced sag under load, and enhanced stability, this kit helps maintain even tire wear, level headlight aim, and responsive braking and steering. Particularly beneficial for owners who frequently carry gear, tow light loads, or drive on rough roads, it bridges the gap between comfort and capability.