For 1990-2009 cars only
Special Tools
J 23498-A Driveshaft Inclinometer
The U-joints working angle is formed by the difference between the angles of two shafts that intersect.
| • | No working angle should be equal to zero. An angle of 0 degrees will cause premature U-joint wear due to lack of rotation of the U-joint needle bearings. |
| • | Always orientate the J 23498-A facing the same side of the vehicle for each measurement taken. |
| • | Be sure to record accurately the measurement data. |
Measurement Procedure
- Raise and support the vehicle; ensure the rear wheel can rotate flexibly. Suspension travel will not affect driveline angles on vehicle. Refer to Lifting and Jacking the Vehicle.
- Place the transmission into NEUTRAL.
- Clean any corrosion or foreign materials from the U-joint.
- Rotate the drive shaft to align the rear-most yoke flanges vertically.
- Install the J 23498-A to the lower U-joint bearing cap of the rear-most shaft yoke.
- Measure and record the angle of the rear drive shaft on the J 23498-A .
- Rotate the drive shaft to align the front-most yoke flanges vertically.
- Install the J 23498-A to the lower U-joint bearing cap of the front-most yoke.
- Measure and record the angle of the front drive shaft on the J 23498-A .
- Calculate the U-joint working angle at each intersection of the two shafts.
- Compare the calculated working angle and specified working angle .
- Any working angle calculated which does not fall within the specifications requires adjustment.
- Any working angle calculated to be equal or less than 1/2 degree requires adjustment.
Subtract the larger number from the smaller to obtain the working angle.
Specification
Maximum U-joint working angle: 0.75 degrees
