Procedure H - Driveshaft/Companion Flange Runout

Runout:

1. Using a dial indicator, measure runout at the front, center and rear of a one-piece shaft. Measure at six places for a two-piece shaft according to the illustration.

Driveshaft/Companion Flange Runout:

2. If runout exceeds specification at any point except the rearmost position, replace the component and retest. If runout is only excessive at the rear joint, proceed to the next step.

Specification: 0.8 mm (0.031 in.)

3. Mark the driveshaft tube at the point of excessive runout with a crayon or paint.

4. Disconnect and reindex the driveshaft 180 degrees. Reconnect and measure runout. Mark high spot. If runout is within specification at this time, retest for vibration. If runout is beyond specification, proceed to the next step.

5. The relationship of the two marks will determine the cause of excessive runout. If the two marks are at approximately the same location on the shaft, the shaft should be replaced for runout. If the marks are on opposite sides, the companion flange is likely the cause and should be checked.

Runout of the Companion Flange Face and Inner Surface:

6. Remove the driveshaft. Measure runout of the companion flange face and inner surface. If excessive, mark each surface at the high spot. Remove the flange, rotate 180 degrees, reinstall, and recheck and mark runout. As with the driveshaft,
if the marks are at the same position, replace the flange. If at opposite positions, check and correct for differential pinion runout. (See Procedure 1)

Specification: 0.10 mm (0.0039 in.)

NOTE: Refer to Repair Manual for proper reassembly of flange and pinion.

This completes the Driveshaft Runout Section.