Driveline troubleshooting
A number of problems can be associated with poor driveline performance, below we offer information on how to identify the problem and additional information on what may be causing the condition to help you in diagnosing the problem: Vibration Premature Wear Slip Spline Wear Shaft and/or Tube Failure Yoke Failure PROBLEM -- Vibration Low gear shudder At certain speeds under full drive or full coast Under light loaded conditions Causes Solutions Secondary couple load reaction at shaft support bearing Improper phasing Incompatible driveshaft Driveshaft weight not compatible with engine-transmission mounting Driveshaft too long for speed Loose outside diameter fit on slip spline Excessively loose u-joint for speed Driveshaft out of balance; not straight Unequal u-joint angles U-joint angle too large for continuous running Worn u-joint Inadequate Torque on bearing plate cap screws Torsional and/or inertial excitation Reduce u-joint continuous ru...