2001 CHRYSLER VOYAGER differential

(42) Remove low/reverse band (Fig. 57).
(43) Remove and inspect #11 thrust washer (Fig.
58).
ASSEMBLY
CAUTION: If transaxle failure has occurred, it is
necessary to flush the transaxle oil cooler and lines
to remove debris and particles that could contami-
nate and/or fail a new or rebuilt unit. (Refer to 7 -
COOLING/TRANSMISSION - STANDARD PROCE-
DURE)NOTE: This procedure does not include assembly
of final drive (differential) components. (Refer to 21
- TRANSMISSION/TRANSAXLE/AUTOMATIC - 31TH/
FINAL DRIVE - ASSEMBLY)
NOTE: This procedure does not include assembly
of transfer system (transfer shaft and output shaft)
components. (Refer to 21 - TRANSMISSION/TRANS-
AXLE/AUTOMATIC - 31TH/TRANSFER SYSTEM -
INSTALLATION)
(1) Install #11 thrust washer (Fig. 59).
(2) Install low/reverse band (Fig. 60). Do not
install strut or adjust at this time.
Fig. 57 Low/Reverse Band and Strut
1 - #11 THRUST WASHER
2 - LOW-REVERSE BAND
3 - STRUT
Fig. 58 No. 11 Thrust Washer
1 - #11 THRUST WASHER
2 - OUTPUT SHAFT
Fig. 59 No. 11 Thrust Washer
1 - #11 THRUST WASHER
2 - OUTPUT SHAFT
Fig. 60 Low/Reverse Band and Strut
1 - #11 THRUST WASHER
2 - LOW-REVERSE BAND
3 - STRUT
21 - 50 AUTOMATIC - 31THRS
AUTOMATIC - 31TH (Continued)

(13) Install rear clutch assembly (Fig. 69). Ensure
that all clutch discs are engaged to front planetary
gear splines or transaxle failure will result.
(14) Install #2 thrust washer (Fig. 69).
(15) Install front clutch assembly (Fig. 70). Ensure
that all clutch discs are engaged to rear clutch
retainer splines or transaxle failure will result.(16) Install kickdown band (Fig. 71). Do not install
strut or adjust at this time.
(17) Install oil pump gasket (Fig. 72).
Fig. 69 No. 2 Thrust Washer and Rear Clutch
1 - REAR CLUTCH ASSEMBLY
2 - #2 THRUST WASHER
Fig. 70 Front Clutch Assembly
1 - REAR CLUTCH ASSEMBLY
2 - FRONT CLUTCH ASSEMBLY
Fig. 71 Kickdown Band and Strut
1 - FRONT CLUTCH
2 - KICKDOWN BAND
3 - OIL RETURN AND FEED HOLE TO DIFFERENTIAL
4 - STRUT
Fig. 72 Oil Pump Gasket
1 - SPLIT IN GASKET (DIFFERENTIAL OIL FEED)
2 - PUMP GASKET
3 - PUMP GASKET DIFFERENTIAL OIL FEED CUTOUT
RSAUTOMATIC - 31TH21-53
AUTOMATIC - 31TH (Continued)

SPECIFICATIONS
31TH AUTOMATIC TRANSAXLE
GENERAL SPECIFICATIONS
Transaxle TypeThree speed automatic with torque converter and
integral differential
Cooling Method Air to oil heat exchanger
Lubrication Method Pump (internal-external gear-type)
GEAR RATIOS
1st Gear 2.69
2nd Gear 1.55
3rd Gear 1.00
Reverse Gear 2.10
BAND ADJUSTMENT
Kickdown (Front)ÐBacked Off From 8 N²m (72 in. lbs.) 2ò turns
Low-Reverse (Rear)ÐBacked Off From 5 N²m (41 in.
lbs.)3 Turns
BEARING SETTINGS (END PLAY & TURNING TORQUE)
Description Metric Standard
Differential Assembly 0.7-1.4 N´m 6-12 in. lbs.
Output Shaft 0-0.3 N´m 0-3 in. lbs.
Transfer Shaft 0.051-0.254 mm 0.002-0.010 in. (end play)
Overall Drag At Output Hub 0.03-1.8 N´m 3-16 in. lbs.
CLUTCH CLEARANCES
Description Metric Standard
Front Clutch (Not Adjustable) 1.27-2.79 mm 0.050-0.110 in.
Rear Clutch 0.71-1.10 mm 0.028-0.043 in.
END PLAY
Description Metric Standard
Input Shaft 0.19-1.50 mm 0.008-0.060 in.
Front Clutch Retainer 0.76-2.69 mm 0.030-0.106 in.
Front Carrier 0.89-1.45 mm 0.007-0.057 in.
Front Annulus Gear 0.09-0.50 mm 0.0035-0.020 in.
Planet Pinion 0.15-0.59 mm 0.006-0.023 in.
Reverse Drum 0.76-3.36 mm 0.030-0.132 in.
RSAUTOMATIC - 31TH21-71
AUTOMATIC - 31TH (Continued)

OIL PUMP CLEARANCE
Description Metric Standard
Outer Gear-to-Pocket 0.045-0.141mm 0.0018-0.0056 in.
Outer Gear Side Clearance 0.020-0.046mm 0.0008-0.0018 in.
Inner Gear Side Clearance 0.020-0.046mm 0.0008-0.0018 in.
THRUST WASHERS
Description Metric Standard
Reaction Shaft Support (No. 1) 1.55-1.60 mm 0.061-0.063 in.
Rear Clutch Retainer (No. 2) 1.55-1.60 mm 0.061-0.063 in.
Output Shaft (No. 3) (Select) 1.98-2.03 mm 0.077-0.080 in
Output Shaft (No. 3) (Select) 2.15-2.22 mm 0.085-0.087 in.
Output Shaft (No. 3) (Select) 2.34-2.41 mm 0.092-0.095 in.
Front Annulus (No. 4) 2.95-3.05 mm 0.116-0.120 in.
Front Carrier (Nos. 5&6) 1.22-1.28 mm 0.0948-0.050 in.
Sun Gear-Front (No. 7) 0.85-0.91 mm 0.033-0.036 in
Sun Gear-Rear (No. 8) 0.85-0.91 mm 0.033-0.036 in.
Rear Carrier (Nos. 9&10) 1.22-1.28 mm 0.0948-0.050 in.
Rev. Drum (No. 11) 1.55-1.60 mm 0.061-0.063 in.
TORQUE SPECIFICATIONS
Description N´m Ft. Lbs. In. Lbs.
Bolt, Differential Bearing
Retainer-to-Case34 Ð 300
Bolt, Differential
Cover-to-Case19 Ð 165
Bolt, Differential Ring
Gear-to-Case95 70 Ð
Bolt, Extension Housing-
to-Case28 Ð 250
Bolt, Drive Plate-to-
Crankshaft95 70 Ð
Bolt, Drive Plate-to-Torque
Converter68 50 Ð
Bolt, Governor-to-Support 7 Ð 60
Bolt, Output Gear Strap 23 17 Ð
Bolt, Oil Pan-to-Case 19 Ð 165
Bolt, Oil Pump-to-Case 31 Ð 275
Bolt, Park Rod Support-to-
Case28 Ð 250
Bolt, Reaction Support-to-
Pump Body28 Ð 250
Bolt, Sprag Retainer-to-
Case28 Ð 250
21 - 72 AUTOMATIC - 31THRS
AUTOMATIC - 31TH (Continued)

Differential Tool L-4436A
Housing Remover Adapter L-4437
Starter Nut L-4439
Transfer Shaft Remover-Installer L-4512
Bearing Cup Remover L-4517
Special Jaw Set L-4518
Installer L-4520
End Play Socket Set 8266
Bearing Splitter P-334
RSAUTOMATIC - 31TH21-77
AUTOMATIC - 31TH (Continued)

(3) Install rear clutch pack (Fig. 137).
(4) Install snap ring using a suitable screwdriver
(Fig. 138).(5) Using feeler gauges, measure rear clutch clear-
ance (Fig. 139).Rear clutch clearance should be
within 0.71-1.10 mm (0.028-0.043 in.).
FINAL DRIVE
DISASSEMBLY
NOTE: The differential is serviced as an assembly.
Service is limited to bearing cups and cones. Any
other failure must be repaired by differential assem-
bly and transfer shaft replacement.
(1) Remove transfer shaft.
(2) Measure differential bearing turning torque.
(Refer to 21 - TRANSMISSION/TRANSAXLE/AUTO-
MATIC - 31TH/BEARINGS - ADJUSTMENTS)
(3) Remove adapter plate seal.
(4) Remove differential cover-to-transaxle case
bolts (Fig. 140).
(5) Remove differential cover (Fig. 141). Clean sur-
faces of old adhesive prior to reassembly.
(6) Remove bearing retainer axle seal using slide
hammer C-637 and Tool 7794A, or Tool L-4518.
(7) Remove differential bearing retainer-to-trans-
axle case bolts (Fig. 142).
Fig. 137 Rear Clutch (4-Disc Shown)
1 - REAR CLUTCH RETAINER
2 - CLUTCH PLATES
3 - THICK STEEL PLATE
4 - SNAP RING (SELECTIVE)
5 - DRIVING DISCS
6 - PRESSURE PLATE
Fig. 138 Rear Clutch Outer Snap Ring
1 - SCREWDRIVER
2 - SNAP RING
3 - REAR CLUTCH ASSEMBLY
Fig. 139 Measuring Rear Clutch Plate Clearance
1 - REAR CLUTCH ASSEMBLY
2 - FEELER GAUGE
3 - SELECTIVE SNAP RING
21 - 90 AUTOMATIC - 31THRS
CLUTCH - REAR (Continued)

(8) Remove bearing retainer from transaxle. Use to
L-4435 to aid in removal by rotating retainer out of
assembly (Fig. 143). Clean surfaces of old adhesive
prior to reassembly.
(9) Remove adapter plate-to-transaxle case bolts.WARNING: HOLD ON TO DIFFERENTIAL WHILE
REMOVING EXTENSION HOUSING TO PREVENT IT
FROM ROLLING OUT OF TRANSAXLE.
Fig. 140 Differential Cover Bolts
1 - DIFFERENTIAL COVER
2 - DIFFERENTIAL COVER BOLT
Fig. 141 Remove Differential Cover
1 - GOVERNOR PRESSURE PLUG
2 - DIFFERENTIAL COVER
3 - 1/8 INCH BEAD OF R T V SEALANT
4 - DIFFERENTIAL ASSEMBLY
Fig. 142 Differential Bearing Retainer Bolts
1 - DIFFERENTIAL BEARING RETAINER
2 - DIFFERENTIAL BEARING RETAINER BOLTS (6)
Fig. 143 Remove Bearing Retainer Using Tool
L-4435
1 - GOVERNOR PRESSURE PLUG
2 - DIFFERENTIAL BEARING RETAINER
3 - SPECIAL TOOL L-4435
RSAUTOMATIC - 31TH21-91
FINAL DRIVE (Continued)

(10) Remove extension housing from transaxle
case. Use Tool L-4435 to aid in removal by rotating
plate out of assembly. Clean surfaces of old adhesive
prior to reassembly.
(11) Measure and record differential side gear end
play using dial indicator C-3339 and Tool C-4995 as
shown in (Fig. 144) and (Fig. 145).Side gear end
play must be within 0.001-0.013 in. Replace dif-
ferential assembly if outside this range.(12) Remove differential bearing cone (from exten-
sion housing side) using Tool C-293, and adapters
C-293-3, and C-293-36 (Fig. 146).
(13) Set up tools as shown in (Fig. 147) and (Fig.
148) to facilitate differential bearing removal from
ring gear side.
Fig. 144 Checking Side Gear End Play
1 - SPECIAL TOOL C-4996 (NOTE POSITION)
2 - DIAL INDICATOR SET
3 - DIFFERENTIAL ASSEMBLY
4 - SIDE GEAR
Fig. 145 Checking Side Gear End Play (Typical)
1 - SPECIAL TOOL C-4996 (NOTE POSITION)
2 - DIAL INDICATOR SET
3 - DIFFERENTIAL ASSEMBLY
Fig. 146 Remove Differential Bearing Cone
(Extension Housing Side)
1 - SPECIAL TOOL C-293
2 - SPECIAL TOOL C-293-36
3 - SPECIAL TOOL C-293-3
Fig. 147 Differential Bearing Removal Set-Up (Ring
Gear Side)
1 - SPECIAL TOOL L-4539-2
2 - SPECIAL TOOL 5048
3 - SPECIAL TOOL 5048-4
21 - 92 AUTOMATIC - 31THRS
FINAL DRIVE (Continued)