DODGE RAM 2003 Service Repair Manual

HYDRAULIC FLOW IN DRIVE THIRD GEAR (CONVERTER CLUTCH APPLIED)
21 - 362 AUTOMATIC TRANSMISSION - 48REDR
AUTOMATIC TRANSMISSION - 48RE (Continued)

HYDRAULIC FLOW IN DRIVE FOURTH GEAR (CONVERTER CLUTCH NOT APPLIED)
DRAUTOMATIC TRANSMISSION - 48RE 21 - 363
AUTOMATIC TRANSMISSION - 48RE (Continued)

HYDRAULIC FLOW IN DRIVE FOURTH GEAR (CONVERTER CLUTCH APPLIED)
21 - 364 AUTOMATIC TRANSMISSION - 48REDR
AUTOMATIC TRANSMISSION - 48RE (Continued)

HYDRAULIC FLOW IN MANUAL LOW (1)
DRAUTOMATIC TRANSMISSION - 48RE 21 - 365
AUTOMATIC TRANSMISSION - 48RE (Continued)

HYDRAULIC FLOW IN MANUAL SECOND (2)
21 - 366 AUTOMATIC TRANSMISSION - 48REDR
AUTOMATIC TRANSMISSION - 48RE (Continued)

HYDRAULIC FLOW DURING FULL THROTTLE 3-2 DOWNSHIFT (PASSING GEAR)
DRAUTOMATIC TRANSMISSION - 48RE 21 - 367
AUTOMATIC TRANSMISSION - 48RE (Continued)

SPECIFICATIONS
TRANSMISSION
GENERAL
Component Metric Inch
Planetary end play 0.150-1.22
mm0.006-0.048
in.
Input shaft end play 0.86-2.13
mm0.034-0.084
in.
Clutch pack clearance/
Front.2.5-4.09
mm0.098-0.161
in.
Clutch pack clearance/
Rear.0.635-0.914
mm0.025-0.036
in.
Front clutch 5 discs
Rear clutch 4 discs
Overdrive clutch 5(STD) or 6 (HO) discs
Direct clutch 23 single sided discs
Band adjustment from
72 in. lbs.
Front band Back off 1 3/4 turns
Rear band Back off 3 turns
Recommended fluid MoparTATF +4, Automatic
Transmission FluidGEAR RATIOS
1ST GEAR 2.45:1
2ND GEAR 1.45:1
3RD GEAR 1.00:1
4TH GEAR 0.69:1
REVERSE 2.21:1
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
21 - 368 AUTOMATIC TRANSMISSION - 48REDR
AUTOMATIC TRANSMISSION - 48RE (Continued)

TORQUE SPECIFICATIONS
DESCRIPTION N´m Ft. Lbs. In. Lbs.
Fitting, cooler line at trans 18 13 -
Bolt, torque convertor 31 - 270
Bolt, clevis bracket to
crossmember47 35 -
Bolt, clevis bracket to rear
support68 50 -
Bolt, driveplate to
crankshaft75 55 -
Plug, front band reaction 17 13 -
Locknut, front band adj. 34 25 -
Bolt, fluid pan 17 13 -
Screws, fluid filter 4 - 35
Bolt, oil pump 20 15 -
Bolt, overrunning clutch
cam17 13 -
Bolt, O/D to trans. 34 25 -
Bolt, O/D piston retainer 17 13 -
Plug, pressure test port 14 10 -
Bolt, reaction shaft
support20 15 -
Locknut, rear band 41 30 -
Bolt, valve body to case 12 - 100
Sensor, trans speed 27 20 -
Screw, solenoid wiring
connector4-35
Screw, solenoid to transfer
plate4-35
Bracket, transmission
range sensor mounting34 - 300
Screw, transmission range
sensor to mounting
bracket3.4 - 30
DRAUTOMATIC TRANSMISSION - 48RE 21 - 369
AUTOMATIC TRANSMISSION - 48RE (Continued)

SPECIAL TOOLS
RE TRANSMISSION
Studs, Oil Pump Pilot - C-3288-B
Gauge, Pressure - C-3292
Gauge, Pressure - C-3293SP
Set, Dial Indicator - C-3339
Compressor, Spring - C-3422-B
Adapter, Band Adjuster - C-3705
Stand, Transmission Repair - C-3750-B
Puller, Slide Hammer - C-3752
Gauge, Throttle Setting - C-3763
Installer, Seal - C-3860-A
21 - 370 AUTOMATIC TRANSMISSION - 48REDR
AUTOMATIC TRANSMISSION - 48RE (Continued)

Compressor, Spring - C-3863-A
Remover, Seal - C-3985-B
Installer, Seal - C-3995-A
Handle, Universal - C-4171
Remover/Installer, Bushing - C-4470
Dial Caliper - C-4962
Spring Compressor and Alignment Shaft - 6227
Bar, Gauge - 6311
Gauge, Block - 6312
DRAUTOMATIC TRANSMISSION - 48RE 21 - 371
AUTOMATIC TRANSMISSION - 48RE (Continued)