1999 DODGE RAM brakes

Install pilot stud and dial indicator onto axle housing. Position dial
indicator so stem is resting against opposite side of axle housing,
with pressure on stem.
5) Adjust dial indicator to zero. Tighten turnbuckle enough
to spread axle housing for differential case removal while noting
reading on dial indicator. Dial indicator reading should not exceed .
020" (.50 mm).
CAUTION: DO NOT spread axle housing more than .020" (.50 mm), or axle
housing may be damaged.
Fig. 2: Installing Axle Housing Spreader
Courtesy of Chrysler Corp.
6) Remove dial indicator. Pry differential case from axle
housing. If reusing bearing races for differential bearings, mark
bearing race location for reassembly reference. Bearing races must be
installed with same differential bearing.
7) If removing ring gear, place differential case in soft-jaw
vise. Remove and discard ring gear bolts. Using soft-face hammer, tap
ring gear from differential case.
8) On rear axles with Rear Wheel Anti-Lock (RWAL) brakes, us\
e
soft-face hammer to tap exciter ring from differential case if
removing exciter ring. Replace exciter ring if removed from
differential case.
9) On all axles, remove pinion nut and washer from pinion.
Scribe reference mark on pinion flange and pinion if components are to
be reused. Disconnect drive shaft, and wire aside.
10) Using appropriate holder and flange remover, remove

pinion flange from pinion. Remove oil seal from axle housing.
11) Remove slinger (if equipped), pinion bearing and preload\
shim(s). See Fig. 1. Note thickness of preload shims for reassembly
reference in case shims become misplaced.
12) Remove pinion and bearing from axle housing. Using
appropriate remover, remove front (outer) pinion bearing race from
axle housing. Remove rear (inner) pinion bearing race from axle
housing using remover. Remove pinion bearing depth shims from axle
housing. See Fig. 1. Measure and record shim thickness for reassembly
reference.
13) Remove rear (inner) bearing from pinion, using
appropriate puller. Remove differential bearings from differential
case. Remove preload shims from differential case. See Fig. 1.
Identify preload shim location. Record preload shim thickness for
reassembly reference.
14) Clamp differential case in soft-jaw vise. Remove roll pin
from differential case. Tap pinion shaft from differential case.
Remove pinion gears, pinion gear thrust washers, side gears and side
gear thrust washers from differential case.
Cleaning & Inspection
1) Clean components with solvent and dry with compressed air.
Inspect components for wear. Inspect bearings and bearing races for
wear and pitting. Replace bearings and bearing races as a set. Inspect
ring gear and pinion teeth for wear and chipping. Replace ring gear
and pinion gear as matched set.
2) Check differential case for cracks or scoring of side
gears, thrust washers and pinion thrust faces. Check fit of side gears
to differential case and axle shaft splines. Examine shaft of pinion
shaft for scoring or excessive wear.
3) On axles with Rear Wheel Anti-Lock (RWAL) brakes, if
exciter ring is not removed from differential case, ensure exciter
ring fits tightly on differential case and is fully seated.
NOTE: Lubricate all bearings, bearing races, gears and thrust
washers with gear lube during reassembly.
Reassembly & Adjustments
1) Place differential case in soft-jaw vise. Install side
gears, side gear thrust washers, pinion gears and pinion gear thrust
washers into differential case.
2) Rotate side gears until holes in pinion gears and thrust
washers align with holes in differential case. Install pinion shaft.
Install roll pin in differential case. Stake edge of differential case
in 2 areas, 180 degrees apart, to retain roll pin in place. Remove
differential case from vise.
3) On rear axles with Rear Wheel Anti-Lock (RWAL) brakes,
align tab on exciter ring with slot on differential case if installing
exciter ring. Install ring gear on differential case. Install 2 NEW
ring gear bolts to maintain bolt hole alignment. Using press, press
exciter ring onto differential case using ring gear as a pilot.
4) Install ring gear on differential case (if not previously
installed). Install NEW ring gear bolts. Tighten bolts evenly in
alternating pattern to specification. See TORQUE SPECIFICATIONS table.
Proceed to INITIAL DIFFERENTIAL BEARING PRELOAD.
NOTE: Initial differential bearing preload must be performed to
determine thickness of preload shims in order to obtain zero
end play of differential case. Procedure must be performed
before installing pinion in axle housing.
Initial Differential Bearing Preload
1) Install master bearings on each side of differential case


DRIV E A XLE - 8 .2 5" & 9 .2 5" R IN G G EA R

1999 D odge P ic ku p R 1500
1998-99 DRIVE AXLES
CHRY - 8 1/4" & 9 1/4" Ring Gears
Dakota, Ram Pickup, Ram Van/Wagon
NOTE: For models using full-floating axles in which vehicle weight
is supported by axle housing tubes, see RBI FULL-FLOATING
AXLES article.
DESCRIPTION & OPERATION
Drive axle contains a solid semi-floating axle shaft splined
into the side gear. On semi-floating axle shafts, vehicle weight is
supported on axle shaft and bearing. Drive shaft rotates the pinion
which drives the ring gear. Power is transferred from ring gear
through side gears to the axle shafts (hypoid gear type).
On rear axles used in vehicles with Rear Wheel Anti-Lock
(RWAL) brakes, a brake sensor is mounted on top of axle housing, and
an exciter ring is mounted on the differential carrier. See Fig. 1.
Fig. 1: Exploded View Of Drive Axle
Courtesy of Chrysler Corp.
AXLE RATIO & IDENTIFICATION

from axle housing clips. Disconnect electrical connector from brake
sensor mounted on top of axle housing (if equipped).
4) Disconnect parking brake cables. Scribe mark on drive
shaft and pinion flange for reassembly reference. Remove bolts and "U"
joint straps at pinion flange. Support drive shaft aside to prevent
damage to rear "U" joint.
5) Remove shock absorber from axle housing. Support axle
housing with floor jack. Remove "U" bolt nuts. Remove "U" bolts and
spring brackets. Lower axle housing from vehicle.
Installation
1) To install, reverse removal procedure. Ensure rear spring
center bolts align with holes in spring pads on axle housing.
2) Ensure reference mark on drive shaft and pinion flange are
aligned. Tighten bolt/nuts to proper specification. See TORQUE
SPECIFICATIONS. Bleed and adjust brakes.
DIFFERENTIAL ASSEMBLY
NOTE: Differential assembly consists of differential carrier and
components mounted in axle housing. For differential assembly
servicing, see DIFFERENTIAL ASSEMBLY under OVERHAUL.
OVERHAUL
DIFFERENTIAL ASSEMBLY
NOTE: Check pinion bearing preload, side play and then ring gear
runout, in this order, before disassembling differential
assembly.
Disassembly
1) Remove axle shafts. See AXLE SHAFT & BEARING under REMOVAL
& INSTALLATION. Using INCH-lb. torque wrench, measure amount of force
required to rotate pinion. This is pinion bearing preload. Record
pinion bearing preload for reassembly reference if front pinion
bearing will be replaced.
2) To check side play, place pry bar between differential
carrier and axle housing. Pry differential carrier to one side and
note if any side play exists. No side play should exist. If side play
exists, remove bolt and adjuster lock. See Fig. 1. Using Adjuster
Rotator (C-4164), tighten adjuster to eliminate side play.
3) To check ring gear runout, install dial indicator on axle
housing at 90 degree angle to ring gear, with stem resting against
flat side of ring gear, opposite gear teeth. Rotate ring gear, and
note ring gear runout.
NOTE: Ring gear must be removed from differential carrier before
checking differential carrier flange runout. Differential
carrier and bearings must be reinstalled in axle housing to
check differential carrier flange runout.
4) Mark ring gear and differential carrier at point of
maximum ring gear runout for reassembly reference. If ring gear runout
does not exceed .005" (.13 mm), differential carrier and ring gear are\
okay. If ring gear runout exceeds .005" (.13 mm), check differential
carrier flange runout once ring gear is removed.
5) Remove brake sensor from top of axle housing (if
equipped). Mark bearing caps and axle housing for reassembly
reference.
CAUTION: Mark all bearing races and adjusters in relation to their

respective differential bearings for reassembly reference.
6) Remove bolt and adjuster lock (if not previously removed)\
.
Loosen, but DO NOT remove, bearing cap bolts. Using Adjuster Rotator
(C-4164), unscrew adjusters from bearing caps. See Figs. 1 and 2.
Remove bolts, bearing caps, adjusters, and differential assembly.
7) Using Holder (C-3281), hold pinion flange. Remove pinion
nut and washer. Scribe reference mark on pinion flange-to-pinion for
reassembly reference. Using appropriate puller, remove pinion flange
from pinion. Remove oil seal for pinion from axle housing. Using soft
drift punch and hammer, drive pinion from axle housing.
NOTE: Front pinion bearing, bearing race, and collapsible spacer
must be replaced after removing pinion from axle housing.
8) Drive pinion bearing races from axle housing. Remove
pinion bearing from pinion. Remove shim(s) located behind pinion
bearing on pinion. Record shim thickness for reassembly reference.
CAUTION: DO NOT remove ring gear from differential carrier unless
components must be replaced or differential carrier flange
runout must be checked.
9) If removing ring gear (and exciter ring on RWAL brake
equipped models), mount differential carrier in soft-jaw vise. Remove
and discard left-hand thread ring gear bolts. Using soft-face hammer,
drive ring gear from differential carrier. Tap exciter ring from
differential carrier, if equipped.
10) If disassembling differential carrier, rotate side gears
and align pinion gears with opening in differential carrier. Remove
pinion gears and pinion gear thrust washers. See Fig. 1. Remove side
gears and side gear thrust washers.
11) If checking differential carrier flange runout, install
differential carrier, bearing races, bearing caps and adjusters in
axle housing. Ensure components are installed in original location.
Thread adjusters into bearing caps.
12) Tighten bearing cap bolts enough to just hold bearing
caps against axle housing. Using Adjuster Rotator (C-4164), tighten
adjuster so no side play exists. Side play can be checked by prying
differential carrier to one side.
13) Install dial indicator on axle housing with stem resting
against differential carrier flange. See Fig. 2. Rotate differential
carrier and note differential carrier flange runout. Replace
differential carrier if runout exceeds .003" (.08 mm).
14) Remove dial indicator, bearing caps, adjusters, bearing
races and differential carrier. Remove differential bearings from
differential carrier (if necessary).
15) Use appropriate puller and adapter (bearing splitter) to\
remove bearing from carrier. On models with Rear Wheel Anti-Lock
(RWAL) brakes, if removing exciter ring, use hammer and soft drift to
tap exciter ring from differential carrier.

hole in differential carrier.
3) If ring gear and exciter ring (models with Rear Wheel
Anti-Lock brakes) were removed, slowly and evenly tap exciter ring
onto differential carrier. Ensure contact surface of ring gear and
differential carrier flange are clean and free of all nicks and burrs.
Remove any sharp areas from chamfer on inside diameter of ring gear.
4) Place ring gear into position on differential carrier.
Start 2 NEW ring gear bolts to align ring gear. Using brass drift and
hammer, alternately and evenly tap ring gear into position. Install
NEW ring gear bolts and tighten to specification. See TORQUE
SPECIFICATIONS.
NOTE: Use components from Pinion Gauge Set (C-3715-B) for 8 1/4"
ring gear, or (C-758-D6) for 9 1/4" ring gear) to complete
assembly. For proper component part number, see PINION GAUGE
SET COMPONENT APPLICATION table.
5) Install differential bearings on differential carrier (if
removed). Use appropriate bearing installer when installing
differential bearings. Go to PINION DEPTH.
PINION GAUGE SET COMPONENT APPLICATION









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Component 8 1/4" 9 1/4"
Ring Gear Ring Gear
Part No. Part No.
Arbor ........................... SP-6029 ................ SP-6018
Gauge Block ..................... SP-5383 ................ SP-6020
Nut ............................. SP-3193 ................. SP-533
Shaft ........................... SP-5385 ................. SP-526
Sleeve "A" ...................... SP-5382 ................ SP-1730
Sleeve "B" ..................... SP-3194-B .............. SP-535-A
Spacer "A" ...................... SP-6030 ................ SP-6017
Spacer "B" ...................... SP-6022 ................ SP-6022
Washer ........................... SP-534 ................. SP-534









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Pinion Depth
1) Using appropriate driver, install bearing races for pinion
bearings in axle housing (if removed). Assemble spacer "A" over shaft
followed by rear (pinion gear side) pinion bearing. See Fig. 3.
Install assembly into axle housing assembly.
2) Install sleeve "A" and front (pinion flange side) pinion
bearing on shaft. Install spacer "B", sleeve "B", washer and nut on
shaft. See Fig. 3. Using Holder (C-3281), hold sleeve "B" from
rotating and gradually tighten nut to seat pinion bearings.
NOTE: When tightening nut to seat pinion bearings, remove holder
and allow sleeve "B" to rotate several times during
tightening procedure to prevent damage to pinion bearings and
bearing cups.
3) Loosen nut. Lubricate pinion bearings with gear lube.
Retighten nut to 15-25 INCH lbs. (2-3 N.m). Rotate pinion several
times to fully seat pinion bearings.
4) Install gauge block and bolt on end of shaft. Using Allen
wrench, tighten bolt. Install arbor in axle housing. See Fig. 3.
Ensure arbor is centered in axle housing.
5) Place a piece of .002" (.05 mm) thick shim stock between
arbor and axle housing on each end of arbor. Install bearing caps over
arbor. Install and tighten bearing cap bolts to 120 INCH lbs. (14 N.
m). Using feeler gauge, check clearance between arbor and gauge block.

VEHICLE SPEED SENSORS
VENTS
VIBRATION DAMPERS
WHEEL ATTACHMENT HARDWARE
WHEEL SPEED SENSORS
WIRING HARNESSES AND CONNECTORS
YOKES AND SLIP YOKES
INTRODUCTION TO MOTORIST ASSURANCE PROGRAM (MAP)
OVERVIEW OF MOTORIST ASSURANCE PROGRAM
The Motorist Assurance Program is the consumer outreach
effort of the Automotive Maintenance and Repair Association, Inc.
(AMRA). Participation in the Motorist Assurance Program is drawn from
retailers, suppliers, independent repair facilities, vehicle
manufacturers and industry associations.
Our organization's mission is to strengthen the relationship
between the consumer and the auto repair industry. We produce
materials that give motorists the information and encouragement to
take greater responsibility for their vehicles-through proper,
manufacturer-recommended, maintenance. We encourage participating
service and repair shops (including franchisees and dealers) to adopt
(1) a Pledge of Assurance to their Customers and (2) the Motorist
Assurance Program Standards of Service. All participating service
providers have agreed to subscribe to this Pledge and to adhere to the
promulgated Standards of Service demonstrating to their customers that
they are serious about customer satisfaction.
These Standards of Service require that an inspection of the
vehicle's (problem) system be made and the results communicated to the\
customer according to industry standards. Given that the industry did
not have such standards, the Motorist Assurance Program successfully
promulgated industry inspection communication standards in 1994-95 for
the following systems: Exhaust, Brakes, ABS, Steering and Suspension,
Engine Maintenance and Performance, HVAC, and Electrical Systems.
Further, revisions to all of these inspection were recently published.
Further, revisions to all of these inspection communication standards
are continually republished. In addition to these, standards for Drive
Train and Transmissions have recently been promulgated. Participating
shops utilize these Uniform Inspection & Communication Standards as
part of the inspection process and for communicating their findings to
their customers.
The Motorist Assurance Program continues to work
cooperatively and proactively with government agencies and consumer
groups toward solutions that both benefit the customer and are
mutually acceptable to both regulators and industry. We maintain the
belief that industry must retain control over how we conduct our
business, and we must be viewed as part of the solution and not part
of the problem. Meetings with state and other government officials
(and their representatives), concerned with auto repair and/or
consumer protection, are conducted. Feedback from these sessions is
brought back to the association, and the program adjusted as needed.
To assure auto repair customers recourse if they were not
satisfied with a repair transaction, the Motorist Assurance Program
offers mediation and arbitration through MAP/BBB-CARE and other non-
profit organizations. MAP conducted pilot programs in twelve states
before announcing the program nationally in October, 1998. During the
pilots, participating repair shops demonstrated their adherence to the
Pledge and Standards and agreed to follow the UICS in communicating
the results of their inspection to their customers. To put some
"teeth" in the program, an accreditation requirement for shops was
initiated. The requirements are stringent, and a self-policing method

CLUTCH LINKAGES (MECHANICAL)
See LINKAGES (EXTERNAL) .
CLUTCH MASTER CYLINDERS
CLUTCH MASTER CYLINDER INSPECTION








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Condition Code Procedure
Cover gasket distorted .. A .... Require replacement of cover
gasket.
Cover gasket gummy ...... A .... Require replacement of cover
gasket.
Cylinder leaking fluid
from rear of bore ...... A .. Require repair or replacement.
Cylinder leaking fluid
internally ............. A ............ Require replacement.
Dust boot missing ....... C ..... Require replacement of dust
boot.
Dust boot punctured ..... A ..... Require replacement of dust
boot.
Dust boot torn .......... A ..... Require replacement of dust
boot.
Fluid level incorrect ... B . Require fluid level adjustment.
Housing damaged, affecting
performance ............ A .. Require repair or replacement.
Master cylinder has
residue in reservoir
(make parallel w/brakes
when they are done) .... 2 .......... ( 1) Further inspection
required.
Threads damaged ......... A ...... Require repair replacement
Threads stripped (threads
missing) ............... A ............ Require replacement.
( 1) - DO NOT replace master cylinder unless it exhibits
conditions listed for replacement. You may suggest fluid
change according to OEM service intervals.









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CLUTCH PEDALS
CLUTCH PEDAL INSPECTION








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Condition Code Procedure
Bent, affecting
performance ............ A .. Require repair or replacement.
Broken .................. A .. Require repair or replacement.
Pedal pad missing ....... C .......... Require replacement of
pedal pad.
Pivot bushings worn,
affecting performance .. A .... Require replacement of pivot
bushings.









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CLUTCH PIVOTS
CLUTCH PIVOT INSPECTION








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