Page 601 of 2389
9. REMOVE FRONT DIFFERENTIAL LEFT CASE
(a) Using a torx wrench, remove the sixteen screws from
the left case.
(b) Separate the left case and right case..
NOTICE: Do not scratch the contact surface of the needle
bearing.
10. REMOVE DIFFERENTIAL PINIONS AND SIDE GEARS
Remove the two differential side gears, two side thrust
washers, differential spider, four differential pinions
and four pinion washers from the front differential
cases.
12. CHECK OPERATION OF CLUTCH PISTONS
(a) Plug one hole of the right case with your hand.
(b) Apply compressed air into the other hole and confirm
that the pistons move.
13. REMOVE HYDRAULIC MULTIPLATE CLUTCH DISCS
AND PLATES
(a) Using a screwdriver, remove the snap ring. 11. REMOVE NO. 1 THRUST WASHER
± AUTOMATIC TRANSAXLEComponent Parts (Differential Assembly A540H)AT±332
Page 602 of 2389
REPLACEMENT OF RING GEAR MOUNTING
CASE BEARINGS
1. REMOVE RING GEAR MOUNTING LEFT CASE
BEARING
Using SST, remove the bearing.
SST 09950±00020, 09950±00030(g) Using a small screwdriver, remove the reaction
sleeve and No. 2 piston.
(h) Remove the three O±rings from the reaction
sleeve and No. 2 piston. (e) Apply compressed air to the right case hole to
remove the No. 1 piston.
(f) Remove the O±ring from the No. 1 piston.(c) Place SST, and compress the return spring.
SST 09350±32014¿09351±320701
(d) Using snap ring pliers, remove the snap ring. (b) Remove the flange, eleven discs and eleven plates.
± AUTOMATIC TRANSAXLEComponent Parts (Differential Assembly A540H)AT±333
Page 603 of 2389
5. REMOVE RING GEAR MOUNTING LEFT CASE BEARING
OUTER RACE FROM LH BEARING RETAINER
(a) Using a hammer and screwdriver, remove the oil seal.
(b) Remove the oil baffle from the LH bearing retainer. 3. REMOVE RING GEAR MOUNTING RIGHT CASE
BEARING
(a) Using a chisel and hammer, cut out the bearing cage.
NOTICE: Do not damage the right case.
4. INSTALL RING GEAR MOUNTING RIGHT CASE
BEARING
Using a press and SST, press in the new bearing.
SST 09316±60010 (09316±00010), 09502±12010 2. INSTALL RING GEAR MOUNTING LEFT CASE BEARING
Using a press and SST, press in the bearing.
SST 09316±20011, 09350±32014 (09351±32090)
(b) Using a press and SST, press out the bearing inner race.
SST 09350±32014 (09351±32090), 09950±00020
± AUTOMATIC TRANSAXLEComponent Parts (Differential Assembly A540H)AT±334
Page 604 of 2389

INSPECTION OF HYDRAULIC MULTIPLATE
CLUTCH
INSPECT DISCS, PLATES AND FLANGE
Check if the sliding surfaces of discs, plates and flange are worn
or burnt. If necessary, replace them.
HINT:
wIf the lining of the disc is exfoliated or discolored, or
even a part of the printed number is defaced, replace all
discs.
wBefore assembling new discs, soak them in ATF for at least fif-
teen minutes. 6. INSTALL ADJUSTING SHIM AND BEARING OUTER
RACE TO LH BEARING RETAINER
(a) Place the adjusting shim into the LH bearing retainer.
HINT: Use either the shim which was removed or one
2.40 mm (4.0945 in.).
(b) Using SST, press the outer race into the LH retainer.
SST 09316±20011, 09350±32014 (09351±32150)
HINT: Install the oil baffle and oil seal after adjusting the
differential side bearing preload.
(See page AT±388) (c) Using a hammer and brass bar, drive out the outer
race and adjusting shim from LH bearing retainer.
± AUTOMATIC TRANSAXLEComponent Parts (Differential Assembly A540H)AT±335
Page 605 of 2389
2. INSTALL PISTON RETURN SPRING
(a) Place the spring on the piston.
(b) Place SST on the spring retainer, and compress the
spring with a press.
SST 09350±32014 (09351±32070)
(c) Using snap ring pliers, install the snap ring.
3. INSTALL PLATE, DISCS AND FLANGE
(a) Install the plate and discs.
Install in order: P = Plate D = Disc
P±D±P±D±P±D±P±D±P±D±P±D±P±D±P±D±P±D±P±D±P±D
HINT: Before assembling new discs, soak them in ATF
for at least fifteen minutes.
ASSEMBLY OF DIFFERENTIAL
ASSEMBLY
1. INSTALL PISTONS AND SLEEVE
(a) Coat the four O±rings with ATF.
(b) Install the four O±rings to the reaction sleeve and pis-
tons.
(c) Install the No. 1 ( (A) ), No. 2 ( (B) ) pistons and
reaction sleeve ( (C) ) to the ring gear mounting
right case.
(b) Install the flange with the flat end facing downward
± AUTOMATIC TRANSAXLEComponent Parts (Differential Assembly A540H)AT±336
Page 606 of 2389
6. CHECK AND ADJUST FRONT DIFFERENTIAL SIDE GEAR
BACKLASH
(Front Differential Left Case)
(a) Install the following parts:
w Side gear thrust washer
wSide gear
wFour differential pinion gears
wFour pinion gear thrust washers
wDifferential spider
(a)Using a dial indicator, measure the backlash of one pinion gear
while holding the side gear toward the case.
Backlash: 0.05 ± 0.20 mm (0.0020 ± 0.0079 in.)
If not within specification select the side gear thrust washer.
NOTICE: Do not tighten the vise too tight.
(c) Remove four pinion gears, four thrust washers and spider. 4. CHECK OPERATION OF CLUTCH PISTONS
(a) Plug one hole with your hand.
(b) Apply compressed air into the other hole and make
sure that the pistons move.
5. INSTALL NO. 1 THRUST WASHER(e) Using a screwdriver, install the snap ring.
± AUTOMATIC TRANSAXLEComponent Parts (Differential Assembly A540H)AT±337
Page 607 of 2389
(b) Using a dial indicator, measure the backlash of one pinion
gear while holding the side gear toward the case.
Backlash: 0.05 ± 0.20 mm (0.0020 ± 0.0079 in.)
Referring to the table below, select the side gear thrust
washer which will ensure that the backlash is within specifi-
cation. Try to select a washer of the same size.(Front Differential Right Case)
(a) Install the following parts:
w Side gear thrust washer
wSide gear
wFour differential pinion gears
wFour pinion gear thrust washer
wDifferential spider
7. INSTALL FRONT DIFFERENTIAL LEFT CASE
(a) Install the left case to the right case.
HINT: Align the matchmarks on the left case and right
case.
(b) Using a torx wrench, torque the sixteen torx
screw:
Torque: 340 kg±cm (25 ft±Ib, 33 N±m)
NOTICE: Do not scratch the contact surface of the
needle bearing.
Thickness mm (in.)
Thickness mm (in.)
MarkMark
± AUTOMATIC TRANSAXLEComponent Parts (Differential Assembly A540H)AT±338
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9. INSTALL RING GEAR
(a) Clean the contact surface of the ring gear mounting
left case.
(b) Heat the ring gear to about 212* F (1000C) in an oil
bath.
NOTICE: Do not heat the ring gear above 230°F
(11 0°C).
(c) Clean the contact surface of the ring gear with clean-
ing solvent.
(d) Quickly install the ring gear on the ring gear mounting
left case.
HINT: Align the matchmarks on the ring gear mounting
left case and the ring gear.
(e) Install the ring gear and ring gear mounting left
case on the ring gear mounting right case.
Install the twelve bolts.
HINT: Align the matchmarks on the ring gear
mounting left case and contact the right case.
(f) Tighten the set bolts uniformly and a little at a time.
Torque the bolts.
Torque: 1,260 kg±cm I91 ft±lb, 124 N±m)
8. INSTALL FRONT DIFFERENTIAL CASE
(a) Install the front differential case to the ring gear
mounting right case.
HINT: Align the flukes of the discs in the hydraulic mut-
tiplate clutch.
(b) Install the No. 2 thrust washer.
± AUTOMATIC TRANSAXLEComponent Parts (Differential Assembly A540H)AT±339