Differential
Bearing Outer Race Replacement
Note these items:
. The bearing outer race and tapered roller bearingshould be replaced as a set.. lnspect and adjust the tapered roller bearing preload
whenever the tapered roller bearing is replaced.
'1. Remove the oil seals from the transmission housingand clutch housing (see page j3-43).
2. Drive the bearing outer race and thrust shim out ofthe transmission housing, or remove the bearingouter race and 75 mm shim from the clutch housingby heating the clutch housing to about 212"F(100"C) with a heat gun. Do not reuse the thrustshim if the outer race was driven out.
TRANSMISSIONHOUSING:
ATTACHMENT52x55mm07746 - 0010400
THRUST SHIM
BEARINGOUTER RACE
CLUTCHHOUSING:
13-40
4, lnstallthe oil seal (see page 13-43).
3. Install the thrust shim or 75 mm shim and the bear-ing outer race in the transmission housing andclutch housing using the special tools.
Note these items during bearing replacement:. Install the bearing outer race squarely.. Check that there is no clearance between thebearing outer race, thrust shim or 75 mm shimand housing.
TRANSMISSIONHOUSING:
HANDI-E07749 - 00 xxto
ATTACHMENT,62x68mm077ir6 - 0010500
BEARINGOUIER RACETHRUST SHIM
CLUTCHHOUSING:HANDLE07749 - 001tXX)o
ATTACHMENT.72xt5mm07745 - 00106{x)
OUTER RACE
75 mm SHIM
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Tapered Roller Bearing Preload Adiustment
lf any oJ the items listed below were replaced, the tapered
roller bearing preload must be adjusted.
. Transmission housing
. Clutch housing
. Differential carrier
o Tapered roller bearing and bearing outer race
. Thrust shim
. 75 mm sham
1. Remove the bearing outer race and thrust shim
from the transmission housing (see page 13-40)'
NOTE:
. Do not reuse the thrust shim if the bearing outer
race was driven out.
. Let the transmission cool to room temperature il
the bearing outer race was removed by heating
the clutch housing.
2. Do not use more than one thrust shim to adjust the
tapered bearing preload. First try the same size
thrust shim that was removed. There are no shims
used on the clutch housing side
SHIMTHRUST
/A
After installing the thrust shim, install the bearing
outer race in the transmission housing (see page
13-40).
With the mainshaft and countershaft removed,
install the differential assembly, and torque the
clutch housing and transmission housing.
NOTE: lt is not necessary to use sealing agent be-
tween the housings.
TOBOUE; 8 x 1.25 mm: 27 N'm(2.8 kgf'm, 20 lbt'ftl
Rotate the differential assembly in both directions
to seat the tapered roller bearings.
Measure the tapered roller bearing preload at nor-
mal room temperature. Measure the starting torque
of the differential assembly in both directions with
the special tool and a torque wrench.
STANDAFD: 1.4 - 2.5 N'm
{1/r - 26 kgf'cm, 12 - 23 lbf in)
(cont'd)
4.
5.
07HAJ - PK4020' 1
13-41
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Differential
Tapered Roller Bearing Preload Adjustment (cont'd)
7. lf the tapered roller bearing preload is not within
the standard, select the thrust shim which will give
the correct tapered roller bearing preload from the
following table.
NOTE: Changing the thrust shim to the nexl size
will increase or decrease tapered roller bearingpreload about 0.3 - 0.4 N.m (3 - 4 kgf.cm, 2.6 -
3.5 lbf.in).
THRUST SHIM
8. Recheck the tapered roller bearing preload.
Part Numbe.Thickness
41381 - PX5 0001.90 mm (0.0748 in)
B41382 - PX5 0001.93 mm {0.0760 in)
c41383-PX5-000'1.96 mm (0.0772 in)
n41384-PX5-0001.99 mm (0.0783 in)
E41385-PX5-0002.02 mm (0.0795 in)
F41386-PXs-0002.05 mm (0.0807 in)
G41387-PXs-0002.08 mm (0.0819 in)
n41388-PX5-0002.11 mm (0.0831 in)
41389-PX5-0002.14 mm (0.0843 in)
J41390-PXs-0002.'17 mm (0,0854 in)
K41391 - PX5 - 0002.20 mm (0.0866 in)
4'1392-PX5-0002.23 mm (0.0878 in)
M41393-PX5-0002.26 mm (0.0890 in)
N41394-PX5-0002.29 mm (0.0902 in)
o41395, PXs - 0002.32 mm (0.09'13 in)
P41396-PX5-0002.35 mm (0.0925 in)
o41397-PX5-0002.38 mm (0.0937 in)
4' t398-PXs-0002.41 mm (0.0949 in)
S41399-PXs-0002.44 mm (0.0961 in)
T41400-PXs-0002.47 mm (0.0972 in)
41873-P16-0001.66 mm (0.0654 in)
AB41874-Pl6-0001.69 mm (0,0665 in)
AC41875 P16 - 000'1.72 mm (0.0677 in)
AD41876-P16-0001.75 mm (0.0689 in)
AE41877-P16-0001.78 mm (0.0701 in)
AF41878-P16-0001.81 mm (0.07'13 in)
41879-P16-000'1.84 mm (0.0724in)
AH41880-P16-0001.87 mm {0.0736 in)
13-42
9. How to select the correct thrust shim:-1) Compare the tapered roller bearing preload
you get with the thrust shim that was removed,
with the specified preload of 1.4 - 2.5 N.m(14 -- 26 kgfcm, 12-23lbtinl.-2) lf your measured tapered roller bearing preload
is less than specified. subtract yours from the
specified,
lf yours is more than specified, subtract the
specified from your measurement.
For example with a 2.17 mm (0.0854 in) thrust
shiml
@ specified 2.5 N.m (26 kgf.cm,23 lbiin)- you measure 0.6 N.m (6 kgf.cm,5 lbf.in)
1.9 N.m (20 kgicm, 18 tbt.in) tess
@ you measure 3.3 N.m (34 kgf.cm,30 lbf.in)- specified 2.5 N.m (26 kgncm,23 lbf.in)
0.8 N.m (8 kgf.cm,7lbt.in) more
Each shim size up or down from standard
makes about 0.3 - 0.4 N.. (3 - 4 kgf'cm,
2.6 - 3.5 lbf.in) difference in tapered roller bear-
ing preload.
In example @, your measured tapered roller
bearing preload was 1.9 N.m (20 kgf.cm,
18 lbf.in) less than standard so you need a
thrust shim five sizes thicker than standard {trythe 2.32 mm (0.0913 in) thrusr shim. and
recheck).
ln example @, your measurement was 0,8 N.m
{8 kgf.cm, 7 lbf.in) more than standard, so you
need a thrust shim two sizes thinner (try the
2.1'l mm {0.0831 in) thrust shim, and recheck).
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Transfer Assembly
Reassembly
Note these items during reassembly:. While reassembling the transfer assembly:- Check and adjust the transfer gear tooth contact.- Measure and adjust the transfer gear backlash.- Check and adjust the tapered roller bearing start-Ing rorque.
. Coat all parts with MTF during reassembly.. Replace the tapered roller bearing and the bearingouter race as a set if either part is replaced.. Replace the transfer drive gear and the transfer dri-ven gear shaft as a set if either part is replaced,
Outline of Assembly
1.Select the 35 mm thrust shim.
Perform this procedure if the transler driven gear
shaft or the tapered roller bearing on the transferdriven gear shaft is replaced.
Preassemble the parts to check and adjust transfergear backlash and transfer gear tooth contact.
Disassemble the parts, then assemble the transferdriven gear shaft and its related parts.
4. Measure and adjust the staning torque of the trans-fer driven gear shaft tapered roller bearing.
5. Assemble the transfer shaft and jts related parts.
6. Measure and adjust the total starting torque.
35 mm Thrust Shim Seleqtion
1. Select the 35 mm thrust shim if the transfer drivengear shaft or the tapered roller bearing on the trans-fer driven gear shaft is replaced.
Calculate the thickness of the 35 mm thrust shimusing the formula below.
ronrvruu:fi--fr-+c=x
A: Number on the existing transfer driven gear shaftB: Number on the replacement transfer driven gear
shaft
C: Thickness ofthe existing 35 mm thrust shimX: Thickness needed for the replacement 35 mmthrust shim
NOTE: The number on the transfer driven gear
shaft is shown in 1/100 mm.
2.
3.
13-52
EXAMPLE:
C: EXISTING 35 mmTHRUST SHIMThicknoss: C=1.05 mm
X: REPLACEMET{T35 mmTHRUST SHIMThickness: X=?? mm
Number: A=+2Number: B-l
A: EXISTING TRANSFERDRIVEN GEAR SHAFT
x= A - B -.'- 100 100 -
2-1
100 100 '-
= 0.02 + 0.01 + 1.05-'1.08 (mm)
B: REPLACEMENT TRANSFERDRIVEN GEAF SHAFT
Select 35 mm thrust shim thickness ot '1.08 mm(0.043 in). lf the tapered roller bearing on the transferdriven gear shaft is replaced.
Measure the thickness of the replacement bearingand the existing bearing, and calculate the differenceof the bearing thickness. Adjust the thickness of theexisting 35 mm thrust shim by the amount of differ-ence in bearing thickness. and select the replacement
35 mm thrust shim. Do not use more than one 35 mmthrust shim to adjust the transfer gear backlash,
THRUST SHIM. 35 mm
Shim No.Part NumberThickness
41361 - PS3 - 0000.72 mm (0.028 in)
B41362-PS3-0000.75 mm (0.030 in)
c41363-PS3-0000.78 mm (0.031 in)
41364-PS3-0000.81 mm (0.032 in)
E41365-PS3-0000.84 mm (0.033 in)
F4r366-PS3-0000.87 mm (0.034 in)
41367-PS3-0000.90 mm (0.035 in)
n41368-PS3-0000.93 mm (0.037 in)
41369-PS3-0000.96 mm {0.038 in)
41370-PS3-0000.99 mm (0.039 in)
41371 - PS3 - 0001.02 mm (0.040 in)
L41372-PS3-0001.05 mm (0.041 in)
41373-PS3-0001.08 mm (0.043 in)
N41374-PS3-0001.11 mm (0.044 in)
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TOROUE WRENCH
10. Hold the transfer shaft with a 14 mm Allen wrench
clamped in a bench vise.
lil mm ALLEN WRENCH
Tighten the transfer shaft locknut.
NOTE:
. The transfer shaft locknut has left-hand threads,
. Do not stake the locknut in this step.
TOROUE: 118 N.m (12.0 kgf.m,86.8 lbf.ft)
Temporarily install the transfer cover A without the
O-ring.
11.
rl0ustNG
TRANSFER COVER A
8xL25mm24 N.m (2.4 kgt.m. 17 lbnftl
'14.
Rotate the companion flange several times to seat
the tapered roller bearing.
Set a dial indicator on the companion flange, then
measure the transfer gear backlash.
STANDARD: 0.06 - 0.15 mm 10.002 - 0.006 in)
COMPANION FLANGE
lf the measurement is not within the standard,
remove the transfer shaft locknut and replace the 25
mm thrust shim. Select and install a new 25 mm
thrust shim. then recheck the measurement. Do not
use more than one 25 mm thrust shim to adjust the
transfer gear backlash,
THRUST SHlM,25 mm
DIAL INDICATOR
Shim No.Part NumbelThickness
I2941r - P1C - 0001.70 mm 10.067 in
229412-PlC-000'L73 mm (0.068 in
329413-P1C-0001.76 mm (0.069 in
29414-PlC-0001.79 mm (0.070 in
529415-P1C-0001.82 mm (0.072 in
629416-PlC-0001.85 mm (0.073 in
7294' 17-PrC-0001.88 mm (0.074 in
8294'18-P1C-0001.91 mm (0.075 in)
29419-PlC-0001.94 mm (0.076 in)'1029420-P1C-0001.97 mm 10.078 in)
1129421 - P1C - 0002.00 mm (0.079 in)
1229422 -P1C - 0002.03 mm (0.080 in)
1329423-P1C-0002.06 mm (0.081 in)
l429424-P1C-0002.09 mm (0.082 in)
29425-P'tC-0002.12 mm (0.083 in)
1629426-P1C-0002.15 mm (0.085 in)
1729427 -P1C-0002.18 mm {0.086 in)'1829428-P1C-0002.21 mm {0.087 in)
1929429-P1C-0002.24 mm 10.088 in)
(cont'd)
13-55
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Transfer Assembly
Reassembly (cont'dl
16. Apply Prussian Blue to both sides of the transfer
gear teeth lightly and evenly.
Rotate the companion flange in both directions until
the transfer gear rotates one full turn in both direc-
tions.
Check the transfer gear tooth contact pattern.
CORREST TOOTH CONTACT PATTERN
INCORRECT IOOTH CONTACT PATTERN
TOE CONTACT
HEEL CONTACT
FLANK CONTACT
17.
18.
TRANSFER DRIVE GEAR
13-56
FACE CONTACT
19. lf the transfer gear tooth contact is incorrect, adjust
the transfer gear tooth contact with a 35 mm or 25
mm thrust shim.
NOTE:
. To select a 35 mm thrust shim, refer to page '13-
. Do not use more than one 35 mm shim to adjust
the transfer gear tooth contact.
. To select the 25 mm thrust shim, refer to page
13-55.
a Do not use more than one 25 mm shim to adjust
the transfer gear tooth contact.
Toe Contact
Use a thicker 35 mm thrust shim to move the
transfer driven gear shaft toward the transfer drive
gear. Because this movement causes the transfer
gear backlash to change, move the transfer drive
gear away from the transfer driven gear shaft to
adjust the transfer gear backlash as iollows;
. Increase the thickness of the 25 mm thrust
shim.
. Reduce the thickness of the 68 mm thrust
shim bv the amount of increased thickness of
the 25 mm thrust shim.
Heol Contact
Use a thinner 35 mm thrust shim to move the
transfer driven gear shaft away from the transfer
drive gear. Because this movement causes the
transfer gear backlash to change, move the trans-
fer drive gear toward the transfer driven gear shaft
to adjust the transfer gear backlash as follows:
. Reduce the thickness of the 25 mm thrust
sh im.
a Increase the thickness of the 68 mm thrust
shim by the amount of reduced thickness of
the 25 mm thrust shim.
Flank Contact
Use a thinner thrust shim to move the transfer
drive gear toward the transfer driven gear shaft.
Flank contact must be adtusted within the limits
of the transfer gear backlash. lf the backlash
exceeds the limits, adjust as described under
Heel Contact.
Face Contsct
Use a thicker thrust shim to move the transfer
drive gear away from the transfer driven gear
shaft. Face contact must be adjusted within the
limits of the transjer gear backlash. lf the back-
lash exceeds the limits, adjust as described
under Toe Contact.
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Transfer Assembly
Reassembly (cont'dl
26. Secure the transfer housing in a bench vise with
soft jaws.
COMPANION FLANGE HOLDER07RAB - 002tD00
27. Install the special tool on the companion flange.
then tighten the transfer driven gear shaft locknut
while measuring the starting torque of the transfer
driven gear shaft.
STARTING TOROUE:
0.98 - 1.39 N.m
{10.0 - 1i1.2 kgf.cm, 8.68 - 12.3 lbf in}
TIGHTENING TOROUE:
132 - 216 N.m
(13.5 - 22.0 kgf.m, 97.6 - 159 lbf.ft)
NOTE:
. Rotate the companion flange several times to
seat the tapered roller bearing, then measure the
startrng torque.
. lf the starting torque exceeds 1.39 N.m (14.2
kgf.cm, 12.3 lbf.in), .eplace the transfer spacer
and reassemble the parts. Do not adjust the
torque with the locknut loose.
. lf the tightening torque exceeds 216 N.m (22.0
kgf.m, 159 lbf'ft), replace the transfer spacer and
reassemble the parts.
. Write down the measurement of the starting
torque: it is used to measure the total starting
torque.
28. Stake the locknut into the transfer driven oear shaft
using a 3.5 mm punch.
0.7 - 1.2 mm(0.03 - 0.05 inl
Point to bestaked.
Install the transfer shaft assemblv in the transfer
housing, then install the tapered roller bearing,
transfer shaft collar, 25 mm thrust shim, transfer
drive gear, conical spring washer, and transfer shaft
locknut on the transfer shaft.
NOTE:
. Coat the threads of the locknut and transfer shaft
with MTF before installing the locknut.
. lnstall the conical spring washer in the direction
snown.
TMNSFER SHAFTASSEMBLY
TRANSFER HOUSING
TAPERED ROLLERBEARING
TRANSFER SHAFTCOLLAR
TRANSFER DRIVEGEAR
PUNCH3.0-3.5 mm10.12 - 0.1a inl
THRUST SHIM, 25 mmSelective part
CONICAL SPRINGWASHEBReplace.
LOCKNUTReplace.
29.
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Transfer Assembly
Reassembly (cont'd)
Remove transfer cover A.
lf the measurement is out of specification, remove
the 68 mm thrust shim from transfer cover A by
heating the cover to almost 212'F (100'C) using a
heat gun. Do not heat the cover higher than 212F
(100"C). Let the cover cool to room temperature
before adjusting the starting torque.
lI the measurement is within the specification, go to
step 40.
COVER A
BEARING OUTER RACE
35.
36.
HEAT GUN
13-60
37. Select the 68 mm thrust shim.
THRUST SHIM, 68 mm
Shim No.Part NumberThickne3s
zv23914-P1C-0201.41 mm (0.056 in)
zw23975-P1C-020'1.44 mm 10.057 in)
zx23916 PlC -020'1.47 mm (0.058 in)
ZI23917 -P1C-O201.50 mm (0.059 in)
zz23978-PlC-0201.53 mm (0.060 in)
23941 - PW5 0001.56 mm {0.061 in)
23942-PWs-0001.59 mm (0.063 in)
c23943-PW5-000't.62 mm (0.064 in)
D23944 PW5 - 0001.65 mm (0.065 in)
E23945-PWs-0001.68 mm (0.066 in)
F23946-PW5-0001.71 mm 10.067 in)
G23947-PW5-000'1.74 mm 10.069 in)
23948-PWs-0001.77 mm (0.070 in)
23949-PWs-0001.80 mm (0.071 in)
239s0-PW5-0001.83 mm (0.072 in)
K23951 - PW5 - 0001.86 mm (0.073 in)
L23952-PWs-0001.89 mm {0.074 in)
239s3-PWs-0001.92 mm {0.076 ini
N23954-PW5-0001.95 mm (0.077 in)
o23955-PW5-0001.98 mm (0.078 in)
P23956 - PW5 , 0002.01 mm (0.079 in)
o23957-PWs-0002.04 mm (0.080 in)
R23958-PWs-0002.07 mm (0.081 in)
23959-PW5-0002.10 mm (0.083 in)
T23960-PW5-0002.13 mm (0.084 in)
U23961 - PW5 - 0002.16 mm (0.085 in)
23962-PW5-0002.19 mm (0.086n)
23963-PWs-0002.22 mm (0.087n)
X23964-PWs-0002.25 mm (0.089n)
23965,PWs-0002.28 mm 10.090n)
23966-PW5-0002.31 mm {0.091 in)
23967-PWs-0002.34 mm (0.092 in)
AB23968-PWs-0002.37 mm (0.093 in)
AC23969-PWs-0002.40 mm {0.094 in}
AD23970-PW5-0002.43 mm (0.096 in)
M23941 - PW8 - 0002.46 mm {0.097 'n}
BZ23942-PW8-0002.49 mm (0.098 in)
cz23943-PW8-0002.52 mm {0.099 ini
DZ23944-PW8-0002.55 mm (0.100 in)
EZ23945-PW8-0002.58 mm (0.102 ini
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