Angle at Front Universal Joint

^ Tools Required:
- J 23498-A Driveshaft Inclinometer
- J 23498-20 Driveshaft Inclinometer Adapter

Measure
1. Raise and suitably support vehicle. Rear axle should be supported at curb height and the wheels are free to spin.
2. Place transmission range selector lever in "NEUTRAL" position.
3. Rotate propeller shaft until the front universal joint bearing cap that is pressed into the propeller shaft is facing straight up and down. Bearing cap must be free of dirt or other foreign material to obtain an accurate measurement.





4. Place J 23498-A (and J 23498-20, if needed) on the front universal joint bearing cap. Center bubble in the sight glass and record the measurement.





5. Rotate the propeller shaft 90° and place J 23498-A on the propeller shaft slip yoke bearing cap. Center the bubble in the sight glass and record the measurement.
6. Subtract the smaller number from the larger number to obtain the front universal joint angle.
7. The difference between the front and rear universal joints should be no more than 1°.