Subaru 2009 IMPREZA Service Manual page 2340

DRIVE SHAFT SYSTEM
3. RUNOUT OF PROPELLER SHAFT
1) Remove the center exhaust pipe.
2) Remove the rear exhaust pipe and muffler.
3) Remove the heat shield cover.
4) Set the dial gauge with its indicator stem at the
center of the propeller shaft tube.
5) Turn the propeller shaft slowly by hands to check
for runout of the propeller shaft.
Runout:
Limit: 0.6 mm (0.024 in)
(B)
(A) Propeller shaft
(B) Dial gauge
4. CENTER BEARING FREE PLAY
1) Remove the front and center exhaust pipes.
2) Remove the rear exhaust pipe and muffler.
3) Remove the heat shield cover.
4) Move the propeller shaft near the center bearing
up, down, left, right by hand, to check for any ab-
normal free play of the bearings.
Propeller Shaft
(A)
DS-00036
DS-00037
DS-12