Driveshaft Angle Measurement
For information on Ford Color Coded Illustrations refer to OEM COLOR CODING
Check
NOTE:
Prior to checking driveline angularity, inspect the CV-joints for correct operation.
NOTE:
An incorrect driveline angle can cause a vibration or shudder.
NOTE:
Driveline angularity is the angular relationship between the engine crankshaft, the driveshaft and the rear axle pinion. Factors determining driveline angularity include ride height, rear spring and engine mounts.
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- General Equipment(s): Digital Inclinometer. Carry out the following preliminary setup steps:
- Inspect the CV-joints for correct operation.
- Park the vehicle on a level surface such as a drive-on hoist, or back onto a front end alignment rack.
- Verify the curb position ride height is within specifications with the vehicle unloaded and all of the tires are inflated to their normal operating pressures.
- Calibrate the Digital Inclinometer by placing it on a clean, flat level section of the frame rail and press the ALT-ZERO button.
- Calibrate the anglemaster by placing it on the bottom of the transmission fluid pan and press the ALT-ZERO button.
- Special Tool(s): Anglemaster II Driveline Inclinometer/Protractor 164-R2402.
- Measure the slope of the rear driveshaft. The measured angle will be the front joint operating angle.
- Special Tool(s): Anglemaster II Driveline Inclinometer/Protractor 164-R2402.
- Calibrate the anglemaster by placing it on the clean, flat locator surface on the drive axle and press the ALT-ZERO button.
- Special Tool(s): Anglemaster II Driveline Inclinometer/Protractor 164-R2402.
- Measure the slope of the rear driveshaft. The measured angle will be the rear joint operating angle.
- Special Tool(s): Anglemaster II Driveline Inclinometer/Protractor 164-R2402.
- If the angle is not within specifications, repair or adjust to obtain the correct angle. Inspect the engine mounts, transmission mounts, rear subframe, rear axle, rear axle mounting or the frame for wear or damage.