Nissan Frontier D22. Instruction — part 726
FRONT FINAL DRIVE ASSEMBLY
FFD-21
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FFD
10. Remove the differential case assembly from the final drive hous-
ing, saving the selected side bearing adjusting shims for later
use during the assembly of the final drive unit.
DRIVE PINION GEAR HEIGHT AND PINION BEARING PRELOAD
1.
Make sure all parts are clean and that the bearings are well
lubricated.
2.
Assemble the pinion gear bearings into Tool.
●
Drive Pinion Front Bearing — make sure the J34309-3 front
pinion bearing seat is secured tightly against the J34309-2
gauge anvil. Then turn the front pinion bearing pilot, J34309-
5, to secure the bearing in its proper position.
●
Drive Pinion Rear Bearing — the rear pinion bearing pilot,
J34309-15, is used to center the rear pinion bearing only. The
rear pinion bearing locking seat, J34309-4, is used to lock the
bearing to the assembly.
3.
Place the differential shim selector tool, J34309, gauge screw
assembly with the pinion rear bearing inner cone installed into
the final drive housing.
SPD668
Tool number
(J34309)
SPD769
SPD197A
SPD893
FFD-22
FRONT FINAL DRIVE ASSEMBLY
4.
Assemble the drive pinion front bearing inner cone and the
J34309-2 gauge anvil together with the J34309-1 gauge screw
in the final drive housing. Make sure that the pinion height
gauge plate, J34309-16, will turn a full 360 degrees, and tighten
the two sections together by hand.
5.
Turn the assembly several times to seat the bearings.
6.
Measure the drive pinion preload without front oil seal resistance
at the end of the J34309-2 gauge anvil using Tool.
7.
Place the J34309-1 “R200A” pinion height adapter onto the
gauge plate and tighten it by hand.
DRIVE PINION BEARING PRELOAD WASHER SELECTION
CAUTION:
Make sure all machined surfaces are clean.
SPD199A
SPD770
Drive pinion preload
without front oil seal
resistance
: 1.0 - 1.3 N·m (10 - 13 kg-cm,
8.7 - 11.3 in-lb)
Tool number
ST3127S000 (J25765-A)
SPD234A
SPD208A
SPD209A
FRONT FINAL DRIVE ASSEMBLY
FFD-23
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FFD
8.
Place the solid pinion bearing spacer, small end first, over the
J34309-2 gauge anvil and seat the small end squarely against
the tip of the J34309-1 gauge screw in the tool recessed portion.
9.
Select the correct thickness of drive pinion bearing preload adjusting washer using a standard gauge of
3.5 mm (0.138 in) and J34309-101 feeler gauge. The exact measure is the thickness of the drive pinion
adjusting washer required. Select the correct drive pinion bearing preload adjusting washer.
10. Set the selected, correct drive pinion bearing preload adjusting washer aside for use when assembling the
drive pinion and bearings into the final drive.
DRIVE PINION HEIGHT ADJUSTING WASHER SELECTION
11. Position the side bearing discs, J25269-4, and arbor firmly into
the side bearing bores.
SPD773
Drive pinion bearing
preload adjusting
washer
: Refer to
SPD210A
SPD774
SPD211A
FFD-24
FRONT FINAL DRIVE ASSEMBLY
12. Install the side bearing caps and tighten the side bearing cap
bolts.
13. Select the correct drive pinion height adjusting washer thickness
by using a standard gauge of 3.0 mm (0.118 in) and J34309-101
feeler gauge. Measure the gap between the J34309-11 “R200A”
pinion height adapter and the arbor.
14. Write down the exact total measurement.
15. Correct the drive pinion height adjusting washer size by referring
to the “drive pinion head number”.
●
There are two numbers painted on the drive pinion. The first
one refers to the drive pinion and ring gear as a matched set
and should be the same as the number on the ring gear. The
second number is the “drive pinion head height number”, and
it refers to the ideal drive pinion height for quietest operation.
●
Use the following chart to determine the correct drive pinion
height adjusting washer.
16. Select the correct drive pinion height adjusting washer.
Side bearing
cap bolts
: 88 - 98 N·m (9 - 10 kg-m, 65 - 72 ft-lb)
SPD212A
SPD204A
Drive Pinion Head Height Number
Add or Remove from the Drive Pinion
Height Adjusting Washer Thickness
Measurement
−6
Add 0.06 mm (0.0024 in)
−5
Add 0.05 mm (0.0020 in)
−4
Add 0.04 mm (0.0016 in)
−3
Add 0.03 mm (0.0012 in)
−2
Add 0.02 mm (0.0008 in)
−1
Add 0.01 mm (0.0004 in)
0
Use the selected washer thickness
+1
Subtract 0.01 mm (0.0004 in)
+2
Subtract 0.02 mm (0.0008 in)
+3
Subtract 0.03 mm (0.0012 in)
+4
Subtract 0.04 mm (0.0016 in)
+5
Subtract 0.05 mm (0.0020 in)
+6
Subtract 0.06 mm (0.0024 in)
Drive pinion height
adjusting washer
: Refer to
.
SPD542
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