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Cal Trac Bar Installation In Contra Costa
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State:
Multi-State
County:
Contra Costa
Control #:
US-0001LTR
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Word;
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FAQ
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.
The pivot at the front leaf eyelet then forces the pin riding on top of the springs downward into the spring pack itself. This downward force of the pin on the leaf springs causes down force on the entire axle assembly and pushes your tires down onto the pavement/dirt.
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.
We suggest a pinion angle to be between -2 to -4 degrees when used with CalTracs.
Ideally, both driveshaft-operating angles will be 1 to 3 degrees. Anything over 3 degrees at the rear axle will shorten your universal joint's life and could create vibration. If your angle is larger than 3 degrees, you must make sure not to exceed the max driveshaft RPM as shown on this Spicer table.
If you spin your tires or get a hopping or chatter feeling from your rear end while towing heavy loads, you are likely feeling the effects of axle wrap and lack of traction. CalTracs were designed to help eliminate both axle wrap and traction issues. Click the link for more information.
Simply put, traction bars are installed on a lifted truck to help maintain its stability, prevent wheel hop, and keep your ride smooth no matter how bumpy the road gets. Axles, tires, suspensions, and trucks might seem a bit heavy for a casual read, or not if you are like us.
In addition to improving consistent 60-foot times, Calvert Racing's patented CalTracs eliminate axle rotation AND improve traction, especially on hard acceleration.
``Traction bars'' are generally helpful in keeping the front control arms from pulling forward under immense acceleration. They can be used on street cars because you can leave your compliant control arm bushings, and use the 3rd pivot of the traction bar to limit the forward movement.
More info
CALTRACS INSTALL GUIDE - STANDARD. Hooks your vehicle, especially on hard acceleration, even in the dirt!Improves consistency and 60-foot times; Keeps axle from rotating, maintains pinion angle. Park truck on a flat work area, chocking the front tires is advised to avoid rolling. The Contra Costa Transportation Authority (CCTA) aims for a future where transportation systems integrate to enhance safety, efficiency, and convenience. Contra Costa County extension (eBART) is under construction and will be awarding a contract for its. CALSAWS BROADCAST: Starting at a.m. California Model Statute Task Force. Crack cocaine use among persons with tuberculosisContra. Costa County, California, 1987–1990.
