DODGE RAM SRT-10 2006 Service Repair Manual

22. Mount a dial indicator to the assembly and zero
the indicator against the OD/reverse reaction plate
(2). Apply 20 psi of air pressure to the overdrive
clutch and record the dial indicator reading. Mea-
sure and record OD clutch pack measurement in
four (4) places, 90° apart. Take average of four
measurements and compare with OD clutch pack
clearance specification.Verify that the clutch clear-
ance is 1.103-1.856 mm (0.043-0.073 in.). The
reaction plate is not selective. If the clutch clear-
ance is not within specification, replace the reac-
tion plate along with all the friction and steel
discs.
23. Install the reverse clutch pack into the input clutch retainer.
24. Install the reverse reaction plate into the input clutch retainer.
25. Install the reverse reaction plate selective snap-ring into the inputclutch retainer.
26. Mount a dial indicator to the assembly, push down
on the clutch discs, pull up on the reaction plate
to ensure the plate is properly seated and zero
the indicator against the reverse clutch discs (2).
Apply20psiofairpressuretothereverseclutch
and record the dial indicator reading. Measure
and record Reverse clutch pack measurement in
four (4) places, 90° apart. Take average of four
measurements and compare with Reverse clutch
pack clearance specification. The correct clutch
clearance is 0.81-1.24 mm (0.032-0.049 in.).
Adjust as necessary. Install the chosen snap-ring
and re-measure to verify selection.

27. Remove the reverse clutch pack (8) from the input clutch retainer.
28. Install the number 2 thrust bearing (18) onto the underdrive hub (17) with outer race against the hub with petro-
leum jelly.
29. Install the underdrive hub (17) into the input clutch retainer.
30. Install the number 3 thrust bearing (1) into the overdrive hub (2) with the outer race against the hub with petro-
leum jelly.
31. Install the overdrive hub (2) into the input clutch retainer.
32. Install the number 4 thrust bearing (5) into the reverse hub with outer race against the hub with petroleum jelly.
33. Install the reverse hub (7) into the input clutch retainer.
34. Install the complete reverse clutch pack (8).
35. Install the reverse reaction plate (9) and snap-ring (10).
36. Push up on reaction plate to allow reverse clutch to move freely.
Input Clutch Assembly - Part 2
1 - THRUST BEARING NUMBER 3 10 - SNAP-RING (SELECT)
2 - OD HUB/SHAFT 11 - PLATE
3 - SNAP-RING (WAVE) 12 - DISC
4 - REV/OD REACTION PLATE 13 - OD CLUTCH
5 - THRUST BEARING NUMBER 4 14 - SNAP-RING (TAPERED)
6 - SNAP-RING (FLAT) 15 - UD/OD REACTION PLATE
7 - REVERSE HUB/SHAFT 16 - SNAP-RING (FLAT)
8 - REVERSE CLUTCH 17 - UD HUB/SHAFT
9 - REVERSE REACTION PLATE 18 - THRUST BEARING NUMBER 2

SENSOR-INPUT SPEED
DESCRIPTION
The Input and Output Speed Sensors are two-wire magnetic pickup devices that generate AC signals as rotation
occurs. They are mounted in the left side of the transmission case and are considered primary inputs to the Trans-
mission Control Module (TCM).
OPERATION
The Input Speed Sensor provides information on how fast the input shaft is rotating. As the teeth of the input clutch
hub pass by the sensor coil, an AC voltage is generated and sent to the TCM. The TCM interprets this information
as input shaft rpm.
The Output Speed Sensor generates an AC signal in a similar fashion, thoughitscoilisexcitedbyrotationofthe
rear planetary carrier lugs. The TCM interprets this information as outputshaftrpm.
The TCM compares the input and output speed signals to determine the following:
Transmission gear ratio
Speed ratio error detection
CVI calculation
The TCM also compares the input speed signal and the engine speed signal to determine the following:
Torque converter clutch slippage
Torque converter element speed ratio
REMOVAL
1. Raise vehicle.
2. Place a suitable fluid catch pan under the transmis-
sion.
3. Remove the wiring connector from the input speed
sensor (3).
4. Remove the bolt holding the input speed sensor to
the transmission case.
5. Remove the input speed sensor (3) from the trans-
mission case.

INSTALLATION
1. Install the input speed sensor (3) into the transmis-
sion case.
2. Install the bolt to hold the input speed sensor (3)
into the transmission case. Tighten the bolt to 12
Nꞏm (105 in.lbs.).
3. Install the wiring connector onto the input speed
sensor.
4. Verify the transmission fluid level. Add fluid as nec-
essary.
5. Lower vehicle.

SENSOR-LINE PRESSURE
DESCRIPTION
The TCM utilizes a closed-loop system to control transmission line pressure. The system contains a variable force
style solenoid, the Pressure Control Solenoid, mounted on the side of the solenoid and pressure switch assembly.
The solenoid is duty cycle controlled by the TCM to vent the unnecessary line pressure supplied by the oil pump
back to the sump. The system also contains a variable pressure style sensor, the Line Pressure Sensor, which is a
direct input to the TCM. The line pressure solenoid monitors the transmission line pressure and completes the feed-
back loop to the TCM. The TCM uses this information to adjust its control of the pressure control solenoid to
achieve the desired line pressure.
OPERATION
The TCM calculates the desired line pressure based upon inputs from the transmission and engine. The TCM cal-
culates the torque input to the transmission and uses that information as the primary input to the calculation. The
line pressure is set to a predetermined value during shifts and when the transmission is in the PARK and NEUTRAL
positions. This is done to ensure consistent shift quality. During all other operation, the actual line pressure is com-
pared to the desired line pressure and adjustments are made to the pressurecontrol solenoid duty cycle.
REMOVAL
1. Raise vehicle.
2. Place a suitable fluid catch pan under the transmis-
sion.
3. Remove the wiring connector from the line pres-
sure sensor (2).
4. Remove the bolt holding the line pressure sensor
(2) to the transmission case.
5. Remove the line pressure sensor (2) from the
transmission case.

INSTALLATION
1. Install the line pressure sensor (2) into the trans-
mission case.
2. Install the bolt to hold the line pressure sensor (2)
into the transmission case. Tighten the bolt to 12
Nꞏm (105 in.lbs.).
3. Install the wiring connector onto the line pressure
sensor (2).
4. Verify the transmission fluid level. Add fluid as nec-
essary.
5. Lower vehicle.

CLUTCH-LOW/REVERSE
DISASSEMBLY
1. Remove the inner overrunning clutch snap-ring (13) from the low/reverse clutch retainer (5).
2. Remove the outer low/reverse reaction plate flat snap-ring (1).
3. Remove the low/reverse clutch (3, 4) and the overrunning clutch (12) from the low/reverse clutch retainer (5) as
an assembly.
4. Separate the low/reverse clutch (3, 4) from the overrunning clutch (12).
Low/Reverse Clutch Assembly
1 - SNAP-RING (SELECT) 8 - SEAL
2 - REACTION PLATE 9 - BELLEVILLE SPRING
3 - DISC 10 - RETAINER
4 - PLATE 11 - SNAP-RING
5 - L/R CLUTCH RETAINER 12 - OVERRUNNING CLUTCH
6 - SEAL 13 - SNAP-RING
7-PISTON

5. Remove the overrunning clutch snap-ring (1).
6. Remove the spacer (4) from the overrunning clutch
(3).
7. Separate the inner and outer races (2) of the over-
running clutch (3).
8. Remove the overrunning clutch lower snap-ring.
9. Using Spring Compressor 8285 (2) and a suitable
shop press (1), compress the low/reverse Belleville
spring (3) and remove the split retaining ring hold-
ing the Belleville spring into the low/reverse clutch
retainer.
10. Remove the low/reverse Belleville spring (3) and
piston from the low/reverse clutch retainer. Use 20
psi of air pressure to remove the piston if
necessary.
CLEANING
Cleantheoverrunningclutchassembly,clutchcam,andlow-reverseclutch retainer. Dry them with compressed air
after cleaning.
INSPECTION
Inspect condition of each clutch part after cleaning. Replace the overrunning clutch roller and spring assembly if any
rollers or springs are worn or damaged, or if the roller cage is distorted, or damaged. Replace the cam if worn,
cracked or damaged.
Replace the low-reverse clutch retainer if the clutch race, roller surface or inside diameter is scored, worn or dam-
aged.

ASSEMBLY
1. Check the bleed orifice to ensure that it is not
plugged or restricted.
2. Install a new seal on the low/reverse piston. Lubri-
cate the seal with Mopar
ATF +4, Automatic
Transmission Fluid, prior to installation.
3. Install the low/reverse piston into the low/reverse
clutch retainer.
4. Position the low/reverse Belleville spring (3) on the
low/reverse piston.
5. Using Spring Compressor 8285 (2) and a suitable
shop press (1), compress the low/reverse Belleville
spring (3) and install the split retaining ring to hold
the Belleville spring into the low/reverse clutch
retainer.
6. Install the lower overrunning clutch snap-ring.
7. Assemble the inner and outer races (2) of the over-
running clutch (3).
8. Position the overrunning clutch spacer (4) on the
overrunning clutch (3).
9. Install the upper overrunning clutch snap-ring (1).

10. Assemble and install the low/reverse clutch pack (3, 4) into the low/reverse clutch retainer (5).
11. Install the low/reverse reaction plate (2) into the low/reverse clutch retainer (5). The reaction plate is directional
and must be installed with the flat side down.
12. Install the low/reverse clutch pack snap-ring (1). The snap-ring is selectable and should be chosen to give the
correct clutch pack clearance.
13. Measure the low/reverse clutch pack clearance and adjust as necessary. The correct clutch clearance is 1.00-
1.74 mm (0.039-0.069 in.).
14. Install the overrunning clutch (12) into the low/reverse clutch retainer (5) making sure that the index splines are
aligned with the retainer.
15. Install the overrunning clutch inner snap-ring (13).
Low/Reverse Clutch Assembly
1 - SNAP-RING (SELECT) 8 - SEAL
2 - REACTION PLATE 9 - BELLEVILLE SPRING
3 - DISC 10 - RETAINER
4 - PLATE 11 - SNAP-RING
5 - L/R CLUTCH RETAINER 12 - OVERRUNNING CLUTCH
6 - SEAL 13 - SNAP-RING
7-PISTON