Driveline Angle Inspection

WARNING: This page is about a different car, the 2003 Lincoln Navigator and 2003 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Special Tool

Courtesy of FORD MOTOR CO.

CAUTION: Prior to checking driveline angularity, inspect the U-joints for correct operation.

NOTE: An incorrect driveline angle can cause a vibration or shudder. For additional information, refer to NOISE, VIBRATION & HARSHNESS .

For the driveshaft angle reading, place the special tool flush against the bottom of the driveshaft. Press the ALT ZERO button to calibrate the inclinometer.

Fig 2: Placing Special Tool Flush Against Bottom Of Driveshaft
Courtesy of FORD MOTOR CO.
To check the pinion operating angle, rotate the driveshaft so that the rear axle pinion flange yoke ear is parallel to the floor. Remove the U-joint snap ring, then install the special tool. Check and record the pinion operating angle reading.
- If the angle is not within specifications, repair or adjust to obtain the correct angle. Inspect the rear suspension, rear axle, rear axle mounting or the frame for wear or damage.
  
  Fig 3: Checking Pinion Operating Angle Reading
  Courtesy of FORD MOTOR CO.
Repeat the step, using the front universal joint to record the transmission operating angle.
Compare the operating angles. Ideally, the operating angles on each end of the driveshaft must:
- be equal or within one degree of each other.
- have a three degree maximum operating angle.
- have at least one-half degree of operating angle.