Drive Pinion Shaft Assembly: Assembly

Using the ST, measure drive pinion shaft measurement "A".
ST 398643600 GAUGE

Fig 1: Measuring Drive Pinion Shaft Measurement A Using ST 398643600 Gauge
Courtesy of SUBARU OF AMERICA, INC.
Using a press, press-fit the new roller bearing into the specified position.
CAUTION: Damage may result if too much force is applied to the roller bearing.

Fig 2: Identifying Drive Pinion Shaft And Roller Bearing
Courtesy of SUBARU OF AMERICA, INC.
After applying ATF to a new O-ring and attaching it to the drive pinion shaft, attach the drive pinion collar to the drive pinion shaft.
Install the lock washer to drive pinion shaft in the proper direction.

Tighten a new lock nut using the ST. Calculate the lock washer and lock nut specifications using following formula.

T2 = L2/(L1 + L2) x T1

T1:116 N.m (11.8 kgf-m, 85.6 ft-lb)

[Required torque setting]

T2: Tightening torque

L1: ST2 length 0.072 m (2.83 in)

L2: Torque wrench length

Example:

TIGHTENING TORQUE SPECIFICATIONS

Torque wrench length m (in)	Tightening torque N.m (kgf-m, ft-lb)
0.4(15.75)	98(10.0,72.3)
0.45(17.72)	100(10.2,73.8)
0.5(19.69)	101 (10.3,74.5)
0.55(21.65)	102(10.4,75.2)

ST1 498937110 HOLDER

ST2 499787700 WRENCH

ST3 499787500 ADAPTER

NOTE: Attach ST2 to torque wrench as straight as possible.

Fig 3: Tightening Lock Nut Using ST

Courtesy of SUBARU OF AMERICA, INC.

Measure the starting torque of the bearing. Make sure the starting torque is within the specified range. If the torque is not within specified range, replace the roller bearing.
Starting torque:

7.6 - 38.1N (0.775 - 3.88 kgf, 1.7 - 8.6 lb)

Fig 4: Measuring Starting Torque Of Bearing
Courtesy of SUBARU OF AMERICA, INC.
Crimp the lock nut in 2 locations.
Measure the dimension "B" of the drive pinion shaft.
ST 398643600 GAUGE

Fig 5: Measuring Dimension B Of Drive Pinion Shaft
Courtesy of SUBARU OF AMERICA, INC.
Calculate the thickness "t" mm (in) of the drive pinion shim.
t = 6.5±0.0625 (0.256±0.0025) - (B - A)

Select three or less shims from following table.

DRIVE PINION SHIM THICKNESS SPECIFICATIONS