Installation of the driveshaft and the removal of the same in the Navajo model requires that the negative battery cable is disconnected and the vehicle is raised safely. Mark the driveshaft yoke against the axle flange and then unhook it, after which the driveshaft needs to be disconnected to the axle companion flange and the back end of the transfer case and then the driveshaft itself should be removed. To install, fit driveshaft with the slip yoke facing the front, insert the bolts and loosen them to 41-55 ft. lbs. make sure the index mark on rear yoke coincides with the index mark on axle companion flange. In Pickup and MPV models, matchmark the rear U-joint and the rear companion flange, unbolt the U-joint, and dismount the center support bearing bracket and withdraws the driveshaft out of the transmission and stuffs the rear seal opening. Installation is the opposite of removal and match marks are to be aligned and the rear companion flange bolts tightened to 39-47 ft. lbs and the center bearing bracket nuts tightened to 27-38 ft. lbs. In the case of U- joint replacement, the operations performed are similar to the one-cardan U-joint. To solve the issue of driveshaft balancing, vibrations can be used to show an indication of an imbalance and this imbalance can be due to faulty universal joints or the wrong angle that is used, not necessarily the driveshaft itself. Check, check, Clean, Check: To check, raise the vehicle, check the propeller shaft, check the universal joints and clamp bolts, and check universal joints and clamp bolts. Trace the shaft and drive the vehicle to determine the intensity and speed of vibration and may use screw clamps to reduce the vibration. In case there are unacceptable vibration, repeat the procedure on the front part of the propeller shaft. To check the run-out, clean up surface of the shaft, screw a dial indicator perpendicular to the shaft and check at given points and change the propeller shaft when the measurements are more than 0.035 inch in the case of Navajo models and 0.016 inch in the case of Pickup and MPV models.