Radial Play at FlangeDriveshaft, Measuring and Marking

Radial play at flange/driveshaft, measuring and marking
Special tools and equipment





^ VW387 Dial gauge holder
^ Dial gauge
^ Bolt M10 x 85

Note:
^ Radial run-out must always be measured if the flange drive shaft at rear final drive was removed. Make new color marking and remove old color marking.
^ If a new driveshaft is installed and the color marking on the drive flange of the rear final drive is no longer visible, location of largest radial run-out must be determined and marked with a color marking.
^ Align this colored dot with colored dot on driveshaft.
^ Radial run-out can also be measured with the rear final drive installed, however the driveshaft must be disconnected from the rear final drive.





- Attach VW387 dial gauge holder with dial indicator to connection between crossmember and final drive.
- Set dial indicator onto ground diameter -arrow- in drive shaft flange (arrow) and set to "O" with 1 mm preload.
- Turn differential gear via both rear wheels (left and right flanges) at same time in one direction until drive flange/driveshaft flange has made one complete revolution.
- Mark largest radial run-out on outer edge of flange with colored marking (equivalent to largest distance from turning axis).
- Remove old marking on drive shaft flange.
^ Install driveshaft.