Move the main propeller shaft upward/downward by hand to check the companion flange of the flywheel housing assembly for looseness. Measure the looseness of companion flange if there is any looseness.

Looseness (radial play) measurement of companion flange
1.Separate the main propeller shaft. Refer to Exploded View.
2.Fix the dial gauge to the companion flange of the flywheel housing assembly, and then measure the looseness of companion flange by moving the companion flange upward/downward.

3.Replace the flywheel housing assembly if the looseness of the companion flange exceeds the standard. Refer to Exploded View (GT-R certified NISSAN dealer).