Rear Drive Shaft: Adjustment

NOTE: When replacing the rear drive shaft or ball bearing, select the thrust needle bearing.

Using the ST, measure the height "A" from ST end face to rear drive shaft thrust needle bearing catch surface.
Preparation tool:

ST: GAUGE (398643600)

Courtesy of SUBARU OF AMERICA, INC.
Using the ST, measure the height "B" from the mating surface of intermediate case to the end surface of ST.
NOTE: Perform measurement at the dent on the ST upper side.

Preparation tool:

ST: PULLER SET (499737100)

Courtesy of SUBARU OF AMERICA, INC.
Using the ST, measure the height "C" from ST end face to transfer clutch assembly thrust needle bearing catch surface.
NOTE: Perform measurement at the dent on the ST upper side.

Preparation tool:

ST: PULLER SET (499737100)

Courtesy of SUBARU OF AMERICA, INC.
Obtain the thickness of thrust needle bearing using the following formula to select the thrust needle bearing.
T mm = (A - 15) - (B - C) - (0.05 - 0.25)

[T in = (A - 0.591) - (B - C) - (0.002 - 0.01)]

T: Thrust needle bearing thickness

A: Height from the ST end face to the rear drive shaft thrust needle bearing catch surface

B: Height from the mating surface of the intermediate case to the ST end face

C: Height from the ST end face to the transfer clutch assembly thrust needle bearing catch surface

15 mm (0.591 in): Thickness of ST

0.05 - 0.25 mm (0.002 - 0.01 in): Clearance