Cal Trac Bar Installation In Franklin

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Multi-State
County:
Franklin
Control #:
US-0001LTR
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FAQ

Caltracs allow the axle to move still but NOT wrap. this "give" so to speak can be the difference in getting a truck to hook and not hook on a track.

By cleverly controlling the position of the rear axle, traction bars significantly reduce the bounce, keeping the rear suspension from excessive movement. This results in a smoother, safer, and more controlled ride, improving the driving experience substantially.

Calvert Racing, Inc.

Track bars are designed to prevent unwanted lateral movement of your vehicle's axle assemblies.

CalTracs are a patented traction bar system designed to solve major issues with Leafspring Suspensions in drag racing or other hard acceleration, such as axle wrap, wheel hop, and wheel spin on take off.

Traction bars are mounted from the rear axle to the frame which doesn't allow the axle to move a lot, this prevents wheel hop and leaves everything where it should be.

Pinion angle is the key. Once you have the traction bars installed you'll want you pinion angle to be negative 2.5 to negative 3-5 degrees.

Either way, you are ultimately looking for pinion angles of 1-2 degrees above the drive shaft angle in the front and 1-2 below drive shaft angle in the back. Theoretically zero is perfect, but the offset allows for axle wrap (twist) under power.

Most driveline companies recommend operating angles of 3° or less for maximum u-joint life. There should be a minimum of ½° to allow the needles to rotate. The higher the operating angle, the more likely your vehicle will develop a vibration at high driveshaft speeds.

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Cal Trac Bar Installation In Franklin