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Cal Trac Bar Installation In Wake
Category:
State:
Multi-State
County:
Wake
Control #:
US-0001LTR
Format:
Word;
Rich Text
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Description
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FAQ
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.
We suggest a pinion angle to be between -2 to -4 degrees when used with CalTracs.
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.
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.
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.
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.
Traction bars are a must on any truck in all honesty. It allows the truck to shift a lot nicer, and keeps the rear end more stable. I'll never remove mine or run a truck without them. My truck needless to say is way more fun to drive and rides a hell of a lot better.
CalTracs were designed to help eliminate both axle wrap and traction issues.
In addition to improving consistent 60-foot times, Calvert Racing's patented CalTracs eliminate axle rotation AND improve traction, especially on hard acceleration.
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.
More info
Place two jack stands below the axle tubes for support. Installing the CALTRACS is very straightforward.Raise and support the car high enough to remove the rear tires. When adjusting your CalTracs, be sure to have the suspension in a compressed state. With Caltracs installed, reinstall the rear tires and lower the car to the ground. CALTRACS INSTALL GUIDE - STANDARD. Park truck on a flat work area, chocking the front tires is advised to avoid rolling. Remove the rear tires, then remove one of the rear leaf packs. You can leave the rear shackle in place.
