Dodge Durango (DN). Manual — part 72
HYDRAULIC
FLOW
IN
MANUAL
SECOND
(2)
21 - 154
42/44RE AUTOMATIC TRANSMISSION
DN
SCHEMATICS AND DIAGRAMS (Continued)
HYDRAULIC
FLOW
DURING
FULL
THROTTLE
3–2
DOWNSHIFT
(P
ASSING
GEAR)
DN
42/44RE AUTOMATIC TRANSMISSION
21 - 155
SCHEMATICS AND DIAGRAMS (Continued)
SPECIFICATIONS
TRANSMISSION
GENERAL
GEAR RATIOS
• 1ST GEAR-2.74
• 2ND GEAR-1.54
• 3RD GEAR-1.00
• 4TH GEAR-0.69
• REV.GEAR-2.21
TORQUE
DESCRIPTION
TORQUE
Fitting, cooler line at trans . . . . 18 N·m (13 ft. lbs.)
Bolt, torque convertor . . . . . . . . 31 N·m (23 ft. lbs.)
Bolt/nut, crossmember . . . . . . . . 68 N·m (50 ft. lbs.)
Bolt, driveplate to crankshaft . . 75 N·m (55 ft. lbs.)
Plug, front band reaction . . . . . 17 N·m (13 ft. lbs.)
Locknut, front band adj. . . . . . . 34 N·m (25 ft. lbs.)
Switch, park/neutral . . . . . . . . . 34 N·m (25 ft. lbs.)
Bolt, fluid pan . . . . . . . . . . . . . . 17 N·m (13 ft. lbs.)
Screws, fluid filter . . . . . . . . . . . 4 N·m (35 in. lbs.)
Bolt, oil pump . . . . . . . . . . . . . . 20 N·m (15 ft. lbs.)
Bolt, overrunning clutch cam . . 17 N·m (13 ft. lbs.)
Bolt, O/D to trans. . . . . . . . . . . . 34 N·m (25 ft. lbs.)
Bolt, O/D piston retainer . . . . . . 17 N·m (13 ft. lbs.)
Plug, pressure test port . . . . . . . 14 N·m (10 ft. lbs.)
Bolt, reaction shaft support . . . . 20 N·m (15 ft. lbs.)
Locknut, rear band . . . . . . . . . . 41 N·m (30 ft. lbs.)
Bolt, valve body to case . . . . . 12 N·m (100 in. lbs.)
Screw, solenoid wiring connector . . . . . . . . . . 4 N·m
(35 in. lbs.)
Screw, solenoid to transfer plate . . . . . . . . . . 4 N·m
(35 in. lbs.)
THRUST WASHER/SPACER/SNAP RING DIMENSIONS
Component
Metric
Inch
Front clutch thrust washer (reaction shaft
support hub)
1.55 mm
0.061 in.
Rear clutch thrust washer (clutch retainer)
1.55 mm
0.061 in.
Intermediate shaft thrust plate (shaft hub pilot)
1.5-1.6 mm
0.060-0.063 in.
Output shaft thrust washer (rear clutch hub)
Select fit to set end play
Rear clutch pack snap ring
1.5 mm
0.060 in.
1.95 mm
0.076 in.
2.45 mm
0.098 in.
Planetary geartrain snap ring (at front of output shaft)
Select fit (three thicknesses available)
Component
Metric
Inch
Planetary end play
0.127-1.22
mm
0.005-0.048
in.
Input shaft end play
0.56-2.31
mm
0.022-0.091
in.
Clutch pack clearance/
Front.
1.70-
3.40mm
0.067-0.134
in.
Clutch pack clearance/
Rear.
0.559-0.914
mm
0.022-0.036
in.
Front Clutch
42RE-4 discs
44RE-5 discs
Rear Clutch
42RE and 44RE-4 discs
Overdrive clutch disc
usage
42RE-3 discs
44RE-4 discs
Direct clutch disc
usage
42RE-6 discs
44RE-8 discs
42RE Band adjustment
from 72 in. lbs.
Front band
Back off 3 turns
Rear band
Back off 4 turns
44RE Band adjustment
from 72 in. lbs.
Front band
Back off 1-7/8 turns
Rear band
Back off 4 turns
Recommended fluid
Mopar
T
ATF Plus 3, type
7176
21 - 156
42/44RE AUTOMATIC TRANSMISSION
DN
Component
Metric
Inch
Overdrive piston thrust plate
Thrust plate and spacer are select fit. Refer to
size charts and selection procedures in
Overdrive Unit D&A procedures
Intermediate shaft spacer
PRESSURE TEST
Overdrive clutch
Fourth gear only
Pressure should be 469-496 kPa (68-72 psi) with
closed throttle and increase to 620-896 kPa (90-130
psi) at 1/2 to 3/4 throttle.
Line pressure (at
accumulator)
Closed throttle
372-414 kPa (54-60 psi).
Front servo
Third gear only
No more than 21 kPa (3 psi) lower than line pressure.
Rear servo
1 range
No more than 21 kPa (3 psi) lower than line pressure.
R range
1103 kPa (160 psi) at idle, builds to 1862 kPa (270 psi)
at 1600 rpm.
Governor
D range closed throttle
Pressure should respond smoothly to changes in mph
and return to 0-7 kPa (0-1.5 psi) when stopped with
transmission in D, 1, 2. Pressure above 7 kPa (1.5 psi)
at stand still will prevent transmission from
downshifting.
SPECIAL TOOLS
RE TRANSMISSIONS
Spring Compressor and Alignment Shaft—6227
Gauge Bar—6311
Extension Housing Pilot—C-3288-B
Pressure Gauge—C-3292
Pressure Gauge—C-3293SP
DN
42/44RE AUTOMATIC TRANSMISSION
21 - 157
SPECIFICATIONS (Continued)
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