Disassembly and Assembly: Assembly
Drive Pinion Assembly
- Connect the propeller shaft to the rear final drive. Refer to Removal and Installation .
- Install the spare tire.
- Install the new drive pinion front bearing outer race (2) and the new drive pinion rear bearing outer race (1), using Tools (A, B, C).
Tool
(A):- (J-8092)
(B):- - (J-51040)
(C):- - (J-51041)
CAUTION: Do not reuse drive pinion front and rear bearing outer race. Replace with bearing as a set. - Install the drive pinion washer (2) to the drive pinion (1). Press on the new drive pinion rear bearing (3) using Tool (A) and suitable tool.
Tool
(A):- - (J-44412)
CAUTION:- Install the drive pinion washer in the proper direction as shown.
- Do not reuse drive pinion rear bearing.
- Be sure that drive pinion rear bearing is properly seated to the drive pinion.
- Assemble the new collapsible spacer to the drive pinion.CAUTION: Do not reuse collapsible spacer.
- Apply differential gear oil to the drive pinion rear bearing, and install the drive pinion assembly into the gear carrier.
- Apply differential gear oil to the new drive pinion front bearing and install it onto the pinion assembly.CAUTION: Do not reuse drive pinion front bearing.
- Install the companion flange and washer onto the drive pinion.
- Seat the drive pinion bearing using Tool.
Tool
- - (J-51048)
If no Tool is available to seat the drive pinion bearing, perform the following.
a. Using the old washer and drive pinion lock nut, tighten the drive pinion lock nut using suitable tool (A) until the hand-felt lash has been removed.
CAUTION: Do not use power tool to seat the drive pinion bearing.b. Remove the drive pinion lock nut, washer and companion flange using suitable tools.
- Install the new front oil seal in evenly until it becomes flush with the gear carrier using Tool (A).
Tool number
: - (J-50982)
CAUTION:- Do not reuse front oil seal.
- Do not incline the new front oil seal when installing.
- Apply multi-purpose grease to the lips of the new front oil seal.
- Apply spline sealant 1.5 mm (0.059 in) diameter bead 360 degrees around splines inside of the pinion flange and install the companion flange to the drive pinion, aligning the matching marks.CAUTION: Do not damage companion flange, deflector or front oil seal.NOTE: Use Spline Sealant (Loctite 565) or equivalent. Refer to Recommended Chemical Products and Sealants .
- Install the new drive pinion lock nut and washer and temporarily tighten using Tool (A).
Tool
: - (J-45012)
CAUTION:- Do not use power tool to install drive pinion lock nut.
- Do not reuse drive pinion lock nut or washer.
- Adjust the drive pinion preload torque using Tool (B).
Tool
: - - (J-25765-B)
Drive pinion bearing preload torque:
Refer to Preload Torque .
- Tighten drive pinion lock nut in small increments and measure drive pinion bearing preload torque several times to prevent overtightening.
- Rotate the drive pinion several times, each time the drive pinion lock nut is tightened to seat the drive pinion bearings.CAUTION:
- Do not loosen drive pinion lock nut to adjust the drive pinion bearing preload torque. If the drive pinion bearing preload torque exceeds specification, disassemble and replace the collapsible spacer and the drive pinion front bearing. Then tighten it again to adjust. Refer to Exploded View .
- After adjustment, rotate drive pinion back and forth two to three times to check for unusual noise, rotation malfunction, and other malfunctions.
- Check companion flange runout. Refer to Disassembly and Assembly .
- Install differential case assembly. Refer to Disassembly and Assembly .
Differential Case Assembly
- Secure the differential case assembly in a vice using Tool (A).
Tool
: - (J-51044)
- Apply thread locking sealant the point (A) into the thread hole for the drive gear (1).
Use Genuine High Strength thread locking Sealant or equivalent. Refer to Recommended Chemical Products and Sealants .
CAUTION:- Completely clean and degrease the drive gear back face, thread holes.
- Apply thread locking sealant onto the first and second threads under the thread hole chamfering of the drive gear on three or more different points.
- Use genuine high strength thread locking sealant or equivalent. Refer to Recommended Chemical Products and Sealants .
- Align the matching mark of the differential case assembly with the mark of the drive gear (if reusing drive gear), then hand thread all the drive gear bolts to the drive gear.CAUTION:
- Drive gear bolts are left hand threaded.
- Do not reuse drive gear bolts.
- Draw the gear onto the differential case assembly by tightening drive gear in a crisscross pattern.CAUTION:
- Do not use power tool to tighten drive gear bolts.
- Drive gear bolts are left hand threaded.
- Tighten the drive gear bolts to specification:
Drive gear bolts
: 300 N.m (31 kg-m, 221 ft-lb)
CAUTION:- Do not reuse drive gear bolts.
- Tighten drive gear bolts in a crisscross pattern.
- Drive gear bolts are left hand threaded.
- Press the new side bearings (1) onto the differential case assembly (2) using Tool (A) and Tool (B).
Tool
(A):- - (J-51045 or J-51046)
(B):- - (J-51047)
CAUTION: Do not reuse side bearing inner race if removed.Be sure that the side bearings are properly seated onto the differential case assembly.
- If Tool was removed after disassembly reinstall Tools (A, B, C).
Tool number
(A):- - (J-51043)
(B):- - (J-24385-C)
(C):- - (J-45101)
- Apply gear oil to side bearings. Install differential case assembly with side bearing outer races into gear carrier.
- Insert the left and right side bearing adjusting shims (2) in place between the side bearing outer race (3) and gear carrier (1) using Tool (A).
Tool
:- - (J-51042) (A)
CAUTION:- Install the side bearing adjusting shims in the proper direction as shown.
- Do not strike the side bearing adjusting shims with a hammer.
NOTE: Use axle housing spreader tool if necessary. - Install the side bearing caps with the matching marks aligned and tighten the side bearing cap bolts to specification.
Side bearing cap bolt torque specification:
Refer to Exploded View .
CAUTION: Tighten side bearing cap bolts in a crisscross pattern. - Check and adjust backlash, tooth contact and total preload torque. Refer to Disassembly and Assembly .
- Install the carrier cover and gasket to the gear carrier. Refer to Removal and Installation .