17/09/2026
Trying to get a leaf-sprung car to actually HOOK? Meet CalTracs.
Calvert Racing CalTracs are a bolt-on traction bar system designed specifically for leaf-spring rear suspension. Under hard acceleration, a conventional leaf spring can twist or “wrap up”, leading to wheel hop, inconsistent launches and wasted power.
CalTracs control that axle rotation and transfer the force back through the suspension, helping plant the rear tyres harder into the ground. The result is improved traction, reduced wheel hop and spring wrap, better control of pinion angle and more consistent 60-foot times. They’re also fully preload adjustable, so the setup can be tuned to suit the car.
And they’re definitely not just for American muscle. There are applications covering a huge range of popular leaf-sprung cars and utes, including Ford Falcon, Mustang, Fairlane, Holden HQ/HJ/HX/HZ/WB, Valiant, Camaro, Nova, Chevy pickups, Toyota and Nissan trucks, plus plenty more. Calvert also offers solutions for modified and custom applications.
Whether you’re building a street car, drag car or a high-powered ute, if you’re making enough power to fight for rear-end traction, CalTracs are one of the proven ways to get that power to the ground.
Calvert Racing CalTracs — available now through Stealth Ride.
Not sure which kit suits your car? Flick us your make, model, year and rear suspension setup and we can help find the right one!