Installation of Drive Pinion Assembly

INSTALLATION OF DRIVE PINION ASSEMBLY





1. Press-fit pinion front and rear bearing outer races with Tools.
Tool number
A Suitable tool
B ST30611000 (325742-1)
C ST30613000 (325742-3)
2. Select pinion height adjusting washer.





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








4. 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.
Apply multi-purpose grease to pinion rear bearing inner race and pinion front bearing inner race.
5. Install front oil seal with Tool.





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

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





7. Tighten the drive pinion 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: ST3127S000 (See J25765-A)
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 nut more.
^ If pinion bearing preload is too great, replace pinion bearing adjusting spacer.