Companion Flange RUNOUT

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

Mount the dial gauge indicator so the dial gauge needle is positioned on the propeller shaft mounting surface. Rotate the companion flange and measure the runout as shown.

Companion flange runout: 0.08 mm (0.003 in) or less

If runout is not within specification, remove the companion flange, rotate 90° in relation to the drive pinion, and install the companion flange using a new drive pinion nut. Tighten the drive pinion nut to the minimum specified torque. Final drive pinion nut torque will be determined when adjusting the total preload. Refer to "TOTAL PRELOAD ".
1. Tool number: KV40104000 ( - )
2. Drive pinion nut: 167 - 372 N.m (17 - 38 kg-m, 124 - 274 ft-lb)
Fig 1: Rotating The Companion Flange And Measuring The Runout
Courtesy of NISSAN MOTOR CO., U.S.A.

CAUTION: The drive pinion nut is not reusable. Use a new drive pinion nut for installation.
If runout is not within specification after rotating the companion flange 90° on the drive pinion, replace the companion flange. Recheck the companion flange runout.
If the new companion flange runout is not within specification, inspect the drive pinion bearing and the drive pinion. Repair as necessary.

CAUTION: Clean all of the rust and dirt off of the companion flange surface before measuring the companion flange runout.