Installation of Drive Pinion Assembly

INSTALLATION OF DRIVE PINION ASSEMBLY





1. Press-fit front and rear bearing outer races with tools.
Tool number
A: Suitable tool
B: ST30611000 (J25742-1)
C: ST30613000 (J25742-3)

2. Select drive pinion height adjusting washer. Mechanical Specifications





3. Install selected drive pinion height adjusting washer in drive pinion. Using hydraulic press and tool, press-fit pinion rear bearing inner race into it.
Tool number: ST30901000 (-)





4. Apply multi-purpose grease to pinion rear bearing inner race and pinion front bearing inner race.





5. Set drive pinion assembly (as shown in figure) in differential carrier and install drive pinion, with press and suitable tool. Stop when drive pinion touches bearing.
6. Install front oil seal with tool.
Tool number: ST30720000 (J25405)





7. Install companion flange, and tighten drive pinion lock nut to minimum. Ascertain that threaded portion of drive pinion and drive pinion lock nut are free from oil.
Tool number: KV40104000 (-)

CAUTION: The drive pinion lock nut is not reusable. Never reuse drive pinion lock nut.





8. Tighten the drive pinion lock nut by very small degrees until the specified preload in achieved, when checking the preload, turn drive pinion in both directions several times.
Tool number: ST3127SOOO (See J25765-A)
Drive pinion bearing preload: 2.65 - 3.23 Nm (0.27 - 0.32 kg-m, 24 - 28 inch lbs.)
^ If pinion bearing preload is too small, tighten the drive pinion lock nut more.
^ If pinion bearing preload is too great, replace pinion bearing adjusting spacer.