2006 DODGE RAM SRT-10 tow

32. Remove rear band adjusting lever and reaction
pin.
33. Remove rear band.
34. Compress front servo rod guide (2) with large
C-clamp (1) and Tool C-4470 (4), or Compressor
Tool C-3422-B. Compress guide only enough to
permit snap-ring removal (about 1/8 in.).
35. Remove servo piston snap-ring (4). Unseat one
end of ring. Then carefully work removal tool
around back of ring until free of ring groove.Exer-
cise caution when removing snap-ring. Servo
bore can be scratched or nicked if care is not
exercised.
36. Remove tools and remove rear servo retainer (3),
spring and piston assembly.
CLEANING
Clean the case in a solvent tank. Flush the case bores and fluid passages thoroughly with solvent. Dry the case and
all fluid passages with compressed air. Be sure all solvent is removed fromthe case and that all fluid passages are
clear.
NOTE: Do not use shop towels or rags to dry the case (or any other transmission component) unless they
aremadefromlint-freematerials.Lintwillsticktocasesurfacesandtransmission components and circu-
late throughout the transmission after assembly. A sufficient quantity of lint can block fluid passages and
interfere with valve body operation.
Lubricate transmission parts with Mopar
ATF +4, Automatic Transmission fluid, during overhaul and assembly. Use
petroleum jelly to prelubricate seals, O-rings, and thrust washers. Petroleumjellycanalsobeusedtoholdpartsin
place during reassembly.
INSPECTION
Inspect the case for cracks, porous spots, worn bores, or damaged threads.Damaged threads can be repaired with
Helicoil thread inserts. However, the case will have to be replaced if it exhibits any type of damage or wear.
Lubricate the front band adjusting screw threads with petroleum jelly andthread the screw part-way into the case.
Be sure the screw turns freely.
Inspect the transmission bushings during overhaul. Bushing condition isimportant as worn, scored bushings con-
tribute to low pressures, clutch slipand accelerated wear of other components. However, do not replace bushings
as a matter of course. Replace bushings only when they are actually worn, orscored.

The use of crocus cloth is permissible where necessary, providing it is usedcarefully.Whenusedonshafts,or
valves, use extreme care to avoid rounding off sharp edges. Sharp edges arevital as they prevent foreign matter
from getting between the valve and valve bore.
Do not reuse oil seals, gaskets, seal rings, or O-rings during overhaul. Replace these parts as a matter of course.
Also do not reuse snap rings or E-clips that are bent or distorted. Replace these parts as well.
ASSEMBLY
Do not allow dirt, grease, or foreign material to enter the case or transmission components during assembly. Keep
the transmission case and components clean. Also make sure the tools and workbench area used for reassembly
operations are equally clean.
Shop towels used for wiping off tools and your hands must be made fromlint freematerials. Lint will stick to trans-
mission parts and could interfere with valve operation or even restrict fluid passages.
Lubricate transmission clutch and gear components with Mopar
ATF +4 during reassembly. Soak clutch discs in
transmission fluid before installation.
Use petroleum jelly on piston seals and o-rings to ease installation. Petroleumjellycanalsobeusedtolubricate
and hold thrust washers and plates in position during assembly.
Do not use chassis grease, bearing grease, white grease, or similar lubricants on any part.These types of
lubricants can eventually block or restrict fluid passages and valve operation. Use petroleum jelly only.
Do not force parts into place. The transmission components and sub-assemblies are easily installed by hand when
properly aligned. If a part seems difficult to install, it is either misaligned or incorrectly assembled. Verify that thrust
washers, thrust plates and seal rings are correctly positioned.
The planetary geartrain, front/rear clutch assemblies and oil pump are all much easier to install when the transmis-
sion case is upright. Either tilt the case upward with wood blocks, or cut a hole in the bench large enough for the
intermediate shaft and rear support. Then lower the shaft and support intothe hole and support the rear of the case
directly on the bench.
FRONT/REAR SERVO
1. Lubricate rear servo piston seal with ATF +4. Lubri-
cateservoboreincasewithATF+4.
2. Install rear servo piston (1) in case. Position piston
at slight angle to bore and insert piston with twist-
ing motion.

FLUID AND FILTER
DIAGNOSIS AND TESTING
EFFECTS OF INCORRECT FLUID LEVEL
Alowfluidlevelallowsthepumptotakeinairalongwiththefluid.Airinthe fluid will cause fluid pressures to be
low and develop slower than normal. If the transmission is overfilled, thegears churn the fluid into foam. This aer-
ates the fluid and causing the same conditions occurring with a low level. In either case, air bubbles cause fluid
overheating, oxidation, and varnish buildup which interferes with valveand clutch operation. Foaming also causes
fluid expansion which can result in fluid overflow from the transmission vent or fill tube. Fluid overflow can easily be
mistaken for a leak if inspection is not careful.
CAUSES OF BURNT FLUID
Burnt, discolored fluid is a result of overheating which has two primary causes.
1. A result of restricted fluid flow through the main and/or auxiliary cooler. This condition is usually the result of a
faulty or improperly installed drainback valve, a damaged oil cooler, or severe restrictions in the coolers and lines
caused by debris or kinked lines.
2. Heavy duty operation with a vehicle not properly equipped for this type of operation. Trailer towing or similar high
load operation will overheat the transmission fluid if the vehicle is improperly equipped. Such vehicles should
have an auxiliary transmission fluid cooler, a heavy duty cooling system,and the engine/axle ratio combination
needed to handle heavy loads.
FLUID CONTAMINATION
Transmission fluid contamination is generally a result of:
adding incorrect fluid
failure to clean dipstick and fill tube when checking level
engine coolant entering the fluid
internal failure that generates debris
overheat that generates sludge (fluid breakdown)
failure to replace contaminated converter after repair
The use of non-recommended fluids can result in transmission failure. Theusual results are erratic shifts, slippage,
abnormal wear and eventual failure due to fluid breakdown and sludge formation. Avoid this condition by using rec-
ommended fluids only.
The dipstick cap and fill tube should be wiped clean before checking fluid level. Dirt, grease and other foreign mate-
rial on the cap and tube could fall into the tube if not removed beforehand. Take the time to wipe the cap and tube
clean before withdrawing the dipstick.
Engine coolant in the transmission fluid is generally caused by a cooler malfunction. The only remedy is to replace
the radiator as the cooler in the radiator is not a serviceable part. If coolant has circulated through the transmission,
an overhaul is necessary.
The torque converter should also be replaced whenever a failure generatessludge and debris. This is necessary
because normal converter flushing procedures will not remove all contaminants.
STANDARD PROCEDURE
FLUID LEVEL CHECK
Low fluid level can cause a variety of conditions because it allows the pumpto take in air along with the fluid. As
in any hydraulic system, air bubbles make the fluid spongy, therefore, pressures will be low and build up slowly.
Improper filling can also raise the fluid level too high. When the transmssion has too much fluid, the geartrain
churns up foam and cause the same conditions which occur with a low fluid level.
In either case, air bubbles can cause overheating and/or fluid oxidation,and varnishing. This can interfere with nor-
mal valve, clutch, and accumulator operation. Foaming can also result in fluid escaping from the transmission vent
where it may be mistaken for a leak.

BEARING-OUTPUT SHAFT FRONT
REMOVAL
1. Remove overdrive unit from the vehicle.
2. Remove overdrive geartrain (5) from housing.
3. Remove snap-ring (2) holding output shaft front
bearing (1) to overdrive geartrain (5).
4. Pull bearing (1) from output shaft (3).
INSTALLATION
1. Place replacement bearing (1) in position on
geartrain (5) with locating retainer groove toward
the rear.
2. Push bearing (1) onto output shaft (3) until the
snap-ring groove is visible.
3. Install snap-ring (2) to hold bearing onto output
shaft (3).
4. Install overdrive geartrain (5) into housing.
5. Install overdrive unit in vehicle.

CLEANING
Clean the geartrain and case components with solvent. Dry all parts exceptthebearingswithcompressedair.Allow
bearings to air dry.
Do not use shop towels for wiping parts dry unless the towels are made from a lint-free material. A sufficient quan-
tity of lint (from shop towels, cloths, rags, etc.) could plug the transmission filter and fluid passages.
Discard the old case gasket and seals.Do not attempt to salvage these parts. They are not reusable. Replace any
of the overdrive unit snap-rings if distorted or damaged.
Minor nicks or scratches on components can be smoothed with crocus cloth. However, do not attempt to reduce
severescoringonanycomponentswithabrasive materials. Replace severely scored components; do not try to
salvage them.
INSPECTION
Check condition of the park lock components and the overdrive case.
Check the bushings in the overdrive case. Replace the bushings if severelyscored or worn. Also replace the case
seal if loose, distorted, or damaged.
Examine the overdrive and direct clutch discs and plates. Replace the discs if the facing is worn, severely scored,
or burned and flaking off. Replace the clutch plates if worn, heavily scored, or cracked. Check the lugs on the clutch
plates for wear. The plates should slide freely in the drum. Replace the plates or drum if binding occurs.
Check condition of the annulus gear, direct clutch hub, clutch drum and clutch spring. Replace the gear, hub and
drum if worn or damaged. Replace the spring if collapsed, distorted, or cracked.
Be sure the splines and lugs on the gear, drum and hub are in good condition. The clutch plates and discs should
slide freely in these components.
Inspect the thrust bearings and spring plate. Replace the plate if worn or scored. Replace the bearings if rough,
noisy, brinnelled, or worn.
Inspect the planetary gear assembly and the sun gear and bushings. If either the sun gear or the bushings are
damaged, replace the gear and bushings as an assembly. The gear and bushings are not serviced separately.
The planetary carrier and pinions must be in good condition. Also be sure the pinion pins are secure and in good
condition. Replace the carrier if worn or damaged.
Inspect the overrunning clutch and race. The race surface should be smoothand free of scores. Replace the over-
running clutch assembly or the race if either assembly is worn or damaged inany way.
Replace the shaft pilot bushing and inner bushing if damaged. Replace either shaft bearing if rough or noisy.
Replace the bearing snap-rings if distorted or cracked.
Check the machined surfaces on the output shaft. These surfaces should clean and smooth. Very minor nicks or
scratches can be smoothed with crocus cloth. Replace the shaft if worn, scored or damaged in any way.
Inspect the output shaft bushings. The small bushing is the intermediate shaft pilot bushing. The large bushing is the
overrunning clutch hub bushing. Replace either bushing if scored, pitted, cracked, or worn.

6. Install rear bearing (1) and snap-ring (2) on output
shaft. Be sure locating ring groove in bearing is
toward rear.
7. Install overrunning clutch (2) on hub (1). Note that
clutch only fits one way. Shoulder on clutch should
seat in small recess at edge of hub.
8. Install thrust bearing on overrunning clutch hub.
Use generous amount of petroleum jelly to hold
bearing in place for installation. Bearing fits one
way only. Be sure bearing is seated squarely
against hub. Reinstall bearing if it does not seat
squarely.
9. Install overrunning clutch (2) in output shaft (6).
Insert snap-ring pliers inhub splines. Expand pliers
to grip hub. Then install assembly with counter-
clockwise, twisting motion.

RETAINER-OVERRUNNING CLUTCH CAM/OVERDRIVE PISTON
DESCRIPTION
The overrunning clutch consists of an inner race (5),
an outer race (or cam) (1), rollers (2) and springs (3),
and the spring retainer (4). The number of rollers and
springs depends on what transmission and which
overrunning clutch is being dealt with.
OPERATION
Astheinnerraceisrotatedinaclockwisedirection(asviewedfromthefront of the transmission), the race causes
the rollers to roll toward the springs, causing them to compress against their retainer. The compression of the
springs increases the clearance between the rollers and cam. This increased clearance between the rollers and cam
results in a freewheeling condition. When the inner race attempts to rotate counterclockwise, the action causes the
rollers to roll in the same direction as the race, aided by the pushing of thesprings. As the rollers try to move in the
same direction as the inner race, they are wedged between the inner and outer races due to the design of the cam.
In this condition, the clutch is locked and acts as one unit.
DISASSEMBLY
1. Remove the overdrive piston (1).
2. Remove the overdrive piston retainer bolts.
3. Remove overdrive piston retainer (4).
4. Remove case gasket.

DISASSEMBLY
1. Remove fiber thrust washer (18) from forward side of clutch retainer (1).
2. Remove input shaft front and rear seal rings (2).
3. Remove selective clutch pack snap-ring (10).
4. Remove the reaction plate (11), clutch discs (9), steel plates (12), pressure plate (8), wave spring (13), spacer
ring (14), and piston spring (7).
5. Remove clutch piston (15) with rotating motion.
6. Remove and discard piston seals (6, 16).
7. Remove input shaft retaining ring (19). It may be necessary to press the input shaft in slightly to relieve tension
on the retaining ring
8. Press input shaft out of retainer with shop press and suitable size presstool. Use a suitably sized press tool to
support the retainer as close to the input shaft as possible.
CLEANING
Clean the clutch components with solvent and dry them with compressed air.Do not use rags or shop towels to dry
any of the clutch parts. Lint from such materials will adhere to component surfaces and could restrict or block fluid
passages after assembly.
Rear Clutch Components
1 - REAR CLUTCH RETAINER 11 - REACTION PLATE
2 - TORLON™ SEAL RINGS 12 - CLUTCH PLATES
3 - INPUT SHAFT 13 - WAVE SPRING
4 - PISTON RETAINER 14 - SPACER RING
5 - OUTPUT SHAFT THRUST WASHER 15 - PISTON
6 - INNER PISTON SEAL 16 - OUTER PISTON SEAL
7 - PISTON SPRING 17 - REAR SEAL RING
8 - PRESSURE PLATE 18 - FIBER THRUST WASHER
9 - CLUTCH DISCS 19 - RETAINING RING
10 - SNAP-RING (SELECTIVE)