Dodge Ram Truck 1500-2500-3500. Manual — part 1776
SPECIFICATIONS
TRANSMISSION
GENERAL
Component
Metric
Inch
Planetary end play
0.150-1.22 mm
0.006-0.048 in.
Input shaft end play
0.86-2.13 mm
0.034-0.084 in.
Clutch pack clearance/Front.
2.5-4.09 mm
0.098-0.161 in.
Clutch pack clearance/Rear.
0.635-0.914 mm
0.025-0.036 in.
Front clutch
5 discs
Rear clutch
4 discs
Overdrive clutch
5(STD Diesel or V-10) OR 6(Diesel HO) discs
Direct clutch
10 discs
Band adjustment from 72 in. lbs.
Front band - Diesel Vehicles
Back off 1 3/4 turns
Front band - V-10 vehicles
Back off 1 1/2 turns
Rear band
Back off 3 turns
Recommended fluid
Mopar
T
ATF +4
GEAR RATIOS
1ST GEAR
2.45:1
2ND GEAR
1.45:1
3RD GEAR
1.0:1
4TH GEAR
0.69:1
REVERSE
2.20:1
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AUTOMATIC TRANSMISSION - 48RE - SERVICE INFORMATION
DR/DH
THRUST WASHER/SPACER/SNAP-RING DIMENSIONS
Component
Metric
Inch
Front clutch thrust washer (reaction shaft support hub)
1.55 mm
0.061 in.
2.15 mm
0.084 in.
2.59 mm
0.102 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)
1.3-1.4 mm
0.052-0.054 in.
1.75-1.8 mm
0.068-0.070 in.
2.1-2.2 mm
0.083-0.085 in.
Rear clutch pack snap-ring
1.5-1.6 mm
0.060-0.062 in.
1.9-1.95 mm
0.074-0.076 in.
Planetary geartrain snap-ring (at front of output shaft)
1.4-1.5 mm
0.055-0.059 in.
1.6-1.7 mm
0.062-0.066 in.
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 524-565 kPa (76-82 psi) with
closed throttle and increase to 965 kPa (140 psi) at 1/2
to 3/4 throttle.
Line pressure (at
accumulator)
Closed throttle
372-414 kPa (54-60 psi).
Front servo
Third or Fourth 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.
DR/DH
AUTOMATIC TRANSMISSION - 48RE - SERVICE INFORMATION
21 - 1037
TORQUE SPECIFICATIONS
DESCRIPTION
N·m
Ft. Lbs.
In. Lbs.
Fitting, cooler line at trans
18
13
-
Bolt, torque convertor
47
35
-
Bolt, clevis bracket to
crossmember
47
35
-
Bolt, clevis bracket to rear
support
68
50
-
Bolt, driveplate to
crankshaft
75
55
-
Bolt, Transmission Throttle
Valve Actuator
8.5
-
75
Plug, front band reaction
17
13
-
Locknut, front band adj.
34
25
-
Bolt, fluid pan
13.6
-
120
Screws, fluid filter
4
-
35
Bolt, oil pump
20
15
-
Bolt, overrunning clutch
cam
17
13
-
Bolt, O/D to trans.
34
25
-
Bolt, O/D piston retainer
17
13
-
Plug, pressure test port
14
10
-
Bolt, reaction shaft support
20
15
-
Locknut, rear band
41
30
-
Bolt, valve body to case
12
-
100
Sensor, trans speed
27
20
-
Screw, solenoid wiring
connector
4
-
35
Screw, solenoid to transfer
plate
4
-
35
Bracket, transmission
range sensor mounting
34
25
-
Screw, transmision range
sensor to mounting
bracket
5
-
45
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AUTOMATIC TRANSMISSION - 48RE - SERVICE INFORMATION
DR/DH
SPECIAL TOOLS
RE TRANSMISSION
Pilot Studs C-3288-B
Oil Pressure Gauge - C-3292
Pressure Gauge - C-3293SP
Dial Indicator C-3339
Valve Spring Compressor C-3422-B
Adapter, Band Adjuster - C-3705
Puller/Slide Hammer, C-3752
Gauge, Throttle Setting - C-3763
Installer C-3860-A
Spring Compressor - C-3863-A
DR/DH
AUTOMATIC TRANSMISSION - 48RE - SERVICE INFORMATION
21 - 1039
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