Place two jack stands below the axle tubes for support. When adjusting your CalTracs, be sure to have the suspension in a compressed state.Park truck on a flat work area, chocking the front tires is advised to avoid rolling. CALTRACS INSTALL GUIDE - STANDARD. Just keep in mind that the Caltracs are going to stiffen up your rear end. Also, you may hear some minor noise from the chatter of the bars. A leading claims and risk management solutions provider, we partner with you to mitigate risk and achieve outcomes that matter most to your ongoing success. The new aluminum bushing set will transfer allot of the suspensions feedback up into the truck. Doing so may reduce its effectiveness. Rent heavy equipment now.