2006 DODGE RAM SRT-10 lock

GEARTRAIN
1. Remove direct clutch hub (2) and spring (1).
2. Remove sun gear (5) and spring plate (3). Then
remove planetary thrust bearing (2) and planetary
gear (1).
3. Remove overrunning clutch assembly (1) with
expanding type snap-ring pliers. Insert pliers into
clutch hub. Expand pliers to grip hub splines and
remove clutch with counterclockwise, twisting
motion.

9. Mark annulus gear and output shaft (1) for assem-
bly alignment reference. Use punch (3) or scriber
to mark gear and shaft.
10. Remove snap-ring (3) that secures annulus gear
(2) on output shaft (1). Use two screwdrivers to
unseat and work snap-ring out of groove as
shown.
11. Remove annulus gear (2) from output shaft (1).
Use rawhide or plastic mallet to tap gear off shaft.
GEAR CASE AND PARK LOCK
1. Remove locating ring from gear case.
2. Remove park pawl shaft retaining bolt and remove shaft, pawl and spring.
3. Remove reaction plug snap-ring and remove reaction plug.
4. Remove output shaft seal.

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.

GEAR CASE
1. Position park pawl and spring in case and install
park pawl shaft. Verify that end of spring with 90°
bend is hooked to pawl and straight end of spring
is seated against case.
2. Install pawl shaft retaining bolt. Tighten bolt to 27
Nꞏm (20 ft. lbs.) torque.
3. Install park lock reaction plug (3). Note that plug
has locating pin (2) at rear. Be sure pin is seated in
hole in case before installing snap-ring (1).
4. Install reaction plug snap-ring (1). Compress snap-
ring only enough for installation; do not distort it.
5. Verify that tab ends of rear bearing locating ring (2)
extend into access hole (1) in gear case.

6. Support geartrain on Tool 6227-1. Be sure tool is
securely seated in clutch hub.
7. Install overdrive gear case (2) on geartrain (1).
8. Expand front bearing locating ring with snap-ring
pliers (1). Then slide case downward until locating
ring locks in bearing groove and release snap-ring.
9. Install locating ring access cover, gasket and
screws (2) in overdrive unit case.
OVERDRIVE CLUTCH
NOTE: The overdrive clutch in a 48RE transmis-
sion uses 5 or 6 clutch discs depending on the
application.
1. Install overdrive clutch reaction ring (1) first. Reac-
tion ring is flat with notched ends.

2. For 5 disc overdrive clutch versions, install wave
spring (1) on top of reaction ring. Reaction ring and
waveringbothfitinsameringgroove.Usescrew-
driver to seat each ring securely in groove. Also
ensure that the ends of the two rings are offset
from each other.
3. Assemble overdrive clutch pack.
4. Install overdrive clutch reaction plate first.
5. Install first clutch disc followed by first clutch plate.
Then install remaining clutch discs and plates in
same order.
6. Install clutch pack pressure plate.
7. Install clutch pack wire-type retaining ring (1).
INTERMEDIATE SHAFT SPACER SELECTION
1. Place overdrive unit in vertical position. Mount it on
blocks, or in workbench with appropriate size
mounting hole cut into it. Be sure unit is facing
upward for access to direct clutch hub. Also be
sure output shaft is not loaded and internal compo-
nents are moved rearward for accurate measure-
ment.
2. Determine correct thickness intermediate shaft
spacer as follows:
a. Insert Gauge 6312 (1) through sun gear, plan-
etary gear and into pilot bushing in output
shaft. Be sure tool bottoms against planetary
shoulder.
b. Position Gauge Bar 6311 (2) across face of
overdrive case. Then position Dial Caliper over
gauge tool.
c. Extend sliding scale of dial caliper downward through gauge tool slot until scale contacts end of Gauge 6312
(1). Lock scale in place. Remove dial caliper tool and note distance measured.

3. Select proper thickness end play spacer from
spacer chart based on distance measured.
4. Remove Gauge Alignment Tool 6312.
OD THRUST PLATE SELECTION
1. Place overdrive unit in vertical position. Mount it on
blocks, or in workbench with appropriate size
mounting hole cut into it. Be sure unit is facing
upward for access to direct clutch hub. Also be
sure output shaft is not loaded and internal compo-
nents are moved rearward for accurate measure-
ment.
2. Determine correct thickness overdrive piston thrust
plate as follows:
a. Position Gauge Tool 6311 (1) across face of
overdrive case. Then position Dial Caliper over
gauge tool.
b. Measure distance to clutch hub thrust bearing
seat (2) at four points 90° apart. Then average
measurements by adding them and dividing by
4.
3. Select and install required thrust plate from infor-
mation in thrust plate chart.
4. Leave Alignment Tool 6227-2 in place. Tool will
keep planetary and clutch hub splines in alignment
until overdrive unit is ready for installation on trans-
mission.
5. Transmission speed sensor can be installed at this
time if desired. However, it is recommended that
sensor not be installed until after overdrive unit is
secured to transmission.
OVERDRIVE PISTON
1. Install new seals on overdrive piston.
2. Stand transmission case upright on bellhousing.
3. Position Guide Ring 8114-1 on outer edge of overdrive piston retainer.
4. Position Seal Guide 8114-3 on inner edge of overdrive piston retainer.
5. Install overdrive piston in overdrive piston retainer by:
a. Aligning locating lugs on overdrive piston to the two mating holes in retainer.
b. Lubricate overdrive piston seals with Mopar
ATF+4.
c. Install piston over Seal Guide 8114-3 and inside Guide Ring 8114-1.