Drive Shaft Flange, Measuring and Marking Radial Run-Out

Drive shaft flange, measuring and marking radial run-out
Special tools, testers and auxiliary equipment required





^ Universal dial indicator bracket VW 387
^ Dial indicator
^ Bolt M10 x 85

Notes:
^ The radial run-out must always be measured when the drive shaft flange on the rear final drive has been removed. Affix a new colored dot and remove the old color marking.
^ If a new drive shaft is installed and if the marking on the flange shaft of the rear final drive is no longer visible, the position of maximum radial run-out must be determined and marked by a colored dot.
^ The colored dot on the drive shaft is positioned opposite the above colored dot.
^ The radial run-out can be measured when rear final drive is installed but the drive shaft must be disconnected at rear final drive.





- Secure universal dial indicator retainer VW 387 with dial indicator at rear final drive.
- Position dial indicator on ground diameter in drive shaft flange -arrow and set to "0" with 1 mm preload.
- Rotate the differential by turning the two rear wheels (left and righthand flange shafts) simultaneously in one direction until the drive shaft flange has undergone one complete revolution.
- Mark the position of greatest radial run-out on flange exterior by a colored dot (equates to greatest distance from rotational axis).
- Remove old marking from drive shaft flange.
- Install drive shaft.