Page 1537 of 2321
(3) Remove oil pan (Fig. 17). Clean sealing sur-
faces of old adhesive prior to reassembly.
(4) Remove oil filter-to-valve body screws (Fig. 18).(5) Remove oil filter and gasket (Fig. 19).
(6) Remove neutral starting and back-up lamp
switch.
(7) Remove park rod retainer e-clip (Fig. 20).
Fig. 17 Transaxle Oil Pan
1 - TRANSAXLE OIL PAN
2 - OIL FILTER
Fig. 18 Oil Filter Screws
1 - SCREWDRIVER HANDLE
2 - SPECIAL TOOL L-4553
3 - OIL FILTER SCREWS (2)
4 - OIL FILTER
Fig. 19 Oil Filter and Gasket
1 - OIL FILTER
2 - GASKET
3 - VALVE BODY
Fig. 20 Parking Rod E-Clip
1 - VALVE BODY
2 - SCREWDRIVER
3 - ªEº CLIP
4 - PARKING ROD
21 - 40 AUTOMATIC - 31THRS
AUTOMATIC - 31TH (Continued)
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Page 1538 of 2321
(8) Remove park rod from transaxle (Fig. 21).
(9) Remove cooler bypass valve and seal (Fig. 22).(10) Remove valve body-to-transaxle bolts (Fig.
23).
(11) Remove valve body from transaxle (Fig. 24).
Note orientation and location of governor tubes.
Fig. 21 Parking Rod
1 - VALVE BODY
2 - PARKING ROD
Fig. 22 Cooler Bypass Valve and Seal
1 - TRANSFER PLATE
2 - BYPASS VALVE
3 - SEAL
Fig. 23 Valve Body Attaching Bolts
1 - VALVE BODY
2 - VALVE BODY ATTACHING BOLTS (7)
3 - GOVERNOR TUBES
Fig. 24 Valve Body and Governor Tubes
1 - VALVE BODY ASSEMBLY
2 - GOVERNOR TUBES
RSAUTOMATIC - 31TH21-41
AUTOMATIC - 31TH (Continued)
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Page 1539 of 2321
(12) Loosen low/reverse band lock nut and adjust-
ing screw to facilitate strut removal (Fig. 25).
(13) Remove low/reverse servo snap ring (Fig. 26).(14) Remove low/reverse servo retainer, spring,
and servo (Fig. 27).
(15) Remove accumulator snap ring (Fig. 28).
Fig. 25 Loosen Low/Reverse Band
1 - LOW-REVERSE BAND LEVER
2 - ADJUSTING SCREW
3 - STRUT
4 - LOW-REVERSE BAND
5 - LOCK NUT
6 - LEVER (SHORT)
Fig. 26 Low/Reverse Servo Snap Ring
1 - SNAP-RING PLIERS
Fig. 27 Remove Retainer, Spring and Servo
1 - SERVO PISTON
2 - SPRING AND RETAINER
Fig. 28 Accumulator Snap Ring
1 - ACCUMULATOR PLATE SNAP RING
2 - SNAP RING PLIERS
3 - ACCUMULATOR PLATE
21 - 42 AUTOMATIC - 31THRS
AUTOMATIC - 31TH (Continued)
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Page 1540 of 2321
(16) Remove accumulator plate (Fig. 29).
(17) Remove accumulator spring and piston (Fig.
30).(18) Loosen kickdown band adjusting screw lock
nut (Fig. 31).
(19) Loosen kickdown band adjusting screw (Fig.
32) enough to facilitate strut removal.
Fig. 29 Accumulator Plate and Snap Ring
1 - SNAP RING
2 - ACCUMULATOR PLATE
3-88O'' RING
Fig. 30 Accumulator Spring and Piston
1 - ACCUMULATOR SPRING
2 - ACCUMULATOR PISTON
3 - SEAL RINGS
Fig. 31 Kickdown Band Adjusting Screw Lock Nut
1 - KICKDOWN BAND ADJUSTING SCREW
Fig. 32 Kickdown Band Adjusting Screw
1 - KICKDOWN BAND ADJUSTING SCREW
RSAUTOMATIC - 31TH21-43
AUTOMATIC - 31TH (Continued)
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Page 1541 of 2321
(20) Remove kickdown servo snap ring (Fig. 33).
(21) Remove kickdown servo guide (Fig. 34).(22) Remove kickdown servo spring and piston
(Fig. 35). Disassemble kickdown servo assembly as
shown in (Fig. 36).
Fig. 33 Kickdown Servo Snap Ring
1 - SNAP RING
2 - SNAP RING PLIERS
3 - ACCUMULATOR PLATE
4 - KICKDOWN LEVER
5 - KICKDOWN PISTON ROD GUIDE
Fig. 34 Kickdown Servo Rod Guide and Snap Ring
1 - SNAP RING
2 - ACCUMULATOR PLATE
3 - RETURN SPRING
4 - O-RING
5 - PISTON ROD GUIDE
Fig. 35 Kickdown Piston Return Spring and Piston
1 - RETURN SPRING
2 - KICKDOWN LEVER
3 - PISTON ROD
4 - KICKDOWN SERVO PISTON
Fig. 36 Controlled Load Kickdown Servo
1 - KICKDOWN PISTON
2 - O-RING
3 - SNAP RING
4 - PISTON ROD GUIDE
5 - SNAP RING
6 - O-RING
7 - PISTON RETURN SPRING
8 - PISTON ROD
9 - SEAL RINGS
21 - 44 AUTOMATIC - 31THRS
AUTOMATIC - 31TH (Continued)
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Page 1542 of 2321
(23) Remove park sprag rod support-to-case bolts
(Fig. 37).
(24) Remove support and bolts (Fig. 38).
NOTE: To remove pawl, spring, and pivot shaft, the
governor support retainer must be removed. (Refer
to 21 - TRANSMISSION/TRANSAXLE/AUTOMATIC -
31TH/TRANSFER SYSTEM - REMOVAL)(25) Remove park pawl, spring, and pivot shaft
(Fig. 39).
(26) Remove oil pump-to-transaxle case bolts (Fig.
40).
Fig. 37 Parking Sprag Rod Support
1 - PARKING SPRAG ROD SUPPORT
2 - BOLT (2)
3 - OUTPUT SHAFT GEAR
Fig. 38 Support and Bolts
1 - BOLT (2)
2 - PARKING SPRAG ROD SUPPORT
Fig. 39 Parking Pawl, Return Spring, and Pivot Shaft
1 - PARK PAWL
2 - RETURN SPRING
3 - NOTE: SMALL DIAMETER TO REAR
4 - PIVOT SHAFT
Fig. 40 Oil Pump Attaching Bolts
1 - SEAL
2 - PUMP ATTACHING BOLTS (7)
3 - PUMP HOUSING
RSAUTOMATIC - 31TH21-45
AUTOMATIC - 31TH (Continued)
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Page 1543 of 2321
(27) Install Tool C-3752 and adapters L-4437 as
shown in (Fig. 41).
(28) Remove oil pump with slide hammer setup
(Fig. 42). Inspect #1 thrust washer.(29) Remove oil pump gasket (Fig. 43).
(30) Remove kickdown band and strut (Fig. 44).
Fig. 41 Install Tool C-3752 with Adapters L-4437
1 - PUMP
2 - PULLERS TOOL C-3752
3 - ADAPTERS TOOL L-4437
Fig. 42 Oil Pump Removal
1 - FRONT CLUTCH
2 - OIL PUMP ASSEMBLY
Fig. 43 Oil Pump Gasket
1 - SPLIT IN GASKET (DIFFERENTIAL OIL FEED)
2 - PUMP GASKET
3 - PUMP GASKET DIFFERENTIAL OIL FEED CUTOUT
Fig. 44 Kickdown Band and Strut
1 - FRONT CLUTCH
2 - KICKDOWN BAND
3 - OIL RETURN AND FEED HOLE TO DIFFERENTIAL
4 - STRUT
21 - 46 AUTOMATIC - 31THRS
AUTOMATIC - 31TH (Continued)
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Page 1544 of 2321
(31) Remove front clutch assembly (Fig. 45).
(32) Remove rear clutch assembly (Fig. 46).
Inspect #2 thrust washer.(33) Remove #3 thrust washer (Fig. 47).
(34) Remove front planetary gear-to-output shaft
snap ring (Fig. 48).
Fig. 45 Front Clutch Assembly
1 - REAR CLUTCH ASSEMBLY
2 - FRONT CLUTCH ASSEMBLY
Fig. 46 No. 2 Thrust Washer and Rear Clutch
1 - REAR CLUTCH ASSEMBLY
2 - #2 THRUST WASHER
Fig. 47 No. 3 Thrust Washer
1 - OUTPUT SHAFT
2 - SUN GEAR DRIVING SHELL
3 - #3 THRUST WASHER (SELECT FIT)
Fig. 48 Front Planetary Gear Snap Ring
1 - FRONT PLANETARY GEAR SNAP RING
2 - SNAP RING PLIERS
3 - FRONT PLANETARY GEAR ASSEMBLY
RSAUTOMATIC - 31TH21-47
AUTOMATIC - 31TH (Continued)
ProCarManuals.com