differential CHRYSLER VOYAGER 1996 Workshop Manual

NOTE: Two of the bolts retaining the shift cover are
shouldered (Fig. 127).
(23) Apply a bead of MopartGasket Maker or
equivalent onto shift cover. Line up the shift detent
springs so the springs are aligned with the shift
cover spring pockets. Install shift cover. Tighten shift
cover bolts to 28 N´m (250 in. lbs.).
(24) Install differential assembly.
(25) Apply a bead of MopartGasket Maker or
equivalent onto differential cover. Install differential
cover. Tighten differential cover bolts to 61 N´m (45
ft. lbs.).
(26) Apply a bead of RTV silicone to the differen-
tial bearing retainer. Install differential bearing
retainer. Tighten differential bearing retainer bolts to
61 N´m (45 ft. lbs.).
(27) Apply a bead of RTV silicone to the extension
housing. Install extension housing. Tighten extension
housing bolts to 28 N´m (250 in. lbs.).
(28) Install engine mount bracket.
INPUT SHAFT
The input shaft is serviced as an assembly. The
only serviceable component of the input shaft is the
rear bearing.
DISASSEMBLY
(1) Install the bearing splitter 1130 under the rear
bearing.
(2) Position the input shaft into a shop press (Fig.
128).
(3) Remove the rear bearing (Fig. 129).
ASSEMBLY
(1) Position replacement bearing onto the input
shaft (Fig. 130).
(2) Place input shaft into shop press.
(3) Position Special Tool 6950 over input shaft on
top of bearing.
(4) Press input shaft bearing into position (Fig.
131).
Fig. 126 Shift Cover Splash Shield
Fig. 127 Gearshift Cover Shouldered Bolts
Fig. 128 Input Shaft
Fig. 129 Remove Bearing
21 - 32 A±598 MANUAL TRANSAXLENS/GS
DISASSEMBLY AND ASSEMBLY (Continued)

(12) Position the intermediate shaft rear bearing
onto the intermediate shaft.
(13) Install the intermediate shaft into a shop
press.
(14) Position Special Tool MD998323 over the
intermediate shaft rear bearing
(15) Press on the intermediate shaft rear bearing
(Fig. 153).
(16) Install intermediate shaft rear bearing snap
ring.
DIFFERENTIAL
NOTE: The differential is typically serviced as an
assembly. The only parts that are serviceable within
the differential are the differential bearing cups and
cones. If any other part fails within the differential,
you should replace the differential assembly.Shim thickness need be determined only if any of
the following parts are replaced:
²Transaxle gear case
²Differential case
²Differential bearings
²Differential cover
Refer toBearing Adjustment Procedurein the
Adjustments section at the end of this section to
determine proper shim thickness. This will provide
correct bearing preload and proper bearing turning
torque.DIFFERENTIAL BEARINGS
Differential bearings are usually serviced as pairs.
If one differential bearing fails, you should replace
both bearing cups and cones
Fig. 152 3±4 Synchro Snap RingFig. 153 Intermediate Shaft Rear Bearing Installation
NS/GSA±598 MANUAL TRANSAXLE 21 - 39
DISASSEMBLY AND ASSEMBLY (Continued)

.
Fig. 154 Remove Differential Bearing Cone
Fig. 155 Install Differential Bearing Cone
Fig. 156 Remove Differential Bearing Cone
Fig. 157 Install Differential Bearing Cone
Fig. 158 Remove Differential Bearing Retainer Cup
21 - 40 A±598 MANUAL TRANSAXLENS/GS
DISASSEMBLY AND ASSEMBLY (Continued)

Fig. 159 Differential Bearing Retainer
Fig. 160 Install Oil Baffle
Fig. 161 Insert (Select) Shim and Differential
Bearing Retainer Cup
Fig. 162 Remove Extension Bearing Cup
Fig. 163 Extension
Fig. 164 Install Extension Oil Baffle
NS/GSA±598 MANUAL TRANSAXLE 21 - 41
DISASSEMBLY AND ASSEMBLY (Continued)

RING GEAR
CAUTION: Always install new ring gear bolts.
Tighten ring gear bolts to 94 N´m (70 ft. lbs.) torque.
DIFFERENTIAL GEARS
REMOVAL
(1) Remove pinion shaft retaining pin (Fig. 167)
(Fig. 168).
(2) Remove pinion shaft (Fig. 169).
(3) Rotate side gears to opening in differential
(Fig. 170).
(4) Remove differential gears (Fig. 171).
Fig. 165 Install Extension Bearing Cup
Fig. 166 Remove or Install Ring Gear Bolts and
Ring Gear
Fig. 167 Remove Pinion Shaft Retaining Pin
Fig. 168 Retaining Pin Removed
Fig. 169 Pinion Shaft Removal
21 - 42 A±598 MANUAL TRANSAXLENS/GS
DISASSEMBLY AND ASSEMBLY (Continued)

INSTALLATION
(1) Assemble the differential side gears, pinion
gears and pinion gears with the pinion gear washers.
(2) Install pinion shaft retaining pin (Fig. 172).
(3) Stake pinion shaft retaining pin with a suitable
chisel (Fig. 173).
(4) Rotate the assembly two full revolutions both
clockwise and counterclockwise. Set up dial indicator
as shown and record end play (Fig. 174) (Fig. 175).
Rotate side gear 90 degrees and record another end
play. Again, rotate side gear 90 degrees and record a
final end play.(5) Using the smallest end play recorded, shim
that side gear to within .02540 mm to .3302 mm
(0.001 to 0.013 inch). The other side gear should be
checked using the same procedure.
CAUTION: Side gear end play must be within 02540
mm to .3302 mm (0.001 to 0.013 inch). Five select
thrust washers are available: 0.027, 0.032, 0.037,
0.042, and 0.047 inch.
SYNCHRONIZER
The 1±2 synchronizer is a dual-cone synchronizer
(Fig. 176). The disassembly and assembly procedures
are the same as the 3±4 synchronizer (Fig. 177)
Fig. 171 Differential Gears
Fig. 170 Remove Pinion Gears, Side Gears, and
Thrust Washers by Rotating Side Gears to Opening
in CaseFig. 172 Install Retaining Pin
NS/GSA±598 MANUAL TRANSAXLE 21 - 43
DISASSEMBLY AND ASSEMBLY (Continued)

(10) Tighten crossover cable adjuster to 8 N´m (70
in. lbs.) (Fig. 224).
CAUTION: Proper torque to the crossover cable
adjusting screw is very important.
(11) Remove lock pin from gearshift housing. Rein-
stall auxiliary vent in gear shift housing (Fig. 225).
Tighten auxiliary vent to 8 N´m (70 in. lbs.).
(12) Check for shift into first and reverse.
(13) Gearshift mechanism and cables are now
functioning properly.
(14) Install gearshift console.
(15) Install gearshift boot.
(16) Install gearshift knob.(17) Stow gearshift lock pin in glove packet.
BEARING ADJUSTMENT PROCEDURE
The A-598 (T-750) transaxle has two bearing
adjustment procedures that must be performed if the
transaxle case or related components have been
replaced. If the intermediate shaft, and/or bearing
cups and cones have been replaced, you must per-
form the intermediate shaft preload shim adjust-
ment. If the differential case, cups or cones have
Fig. 220 Lock Pin Installation
Fig. 221 Gearshift Knob
Fig. 222 Gearshift Boot
Fig. 223 Gearshift Console
21 - 56 A±598 MANUAL TRANSAXLENS/GS
ADJUSTMENTS (Continued)

been replaced, you must perform the differential
bearing preload shim adjustment. If the transaxle
case has been replaced, you must perform both pro-
cedures.
GENERAL RULES ON SERVICING BEARINGS
(1) Use extreme care when removing and install-
ing bearing cups and cones. Burrs or nicks on the
bearing seat will give a false end play reading while
gauging for proper shims. Improperly seated bearing
cups and cones are subject to low±mileage failure.
(2) Bearing cups and cones should be replaced if
they show signs of pitting or heat distress. If distress
is seen on either the cup or bearing rollers, both cup
and cone must be replaced.(3) Bearing preload and drag torque specifications
must be maintained to avoid premature bearing fail-
ures. Used (original) bearings may lose up to 50% of
their original drag torque after break in. All bearing
adjustments must be made with no other component
interference or gear intermesh.
(4) Replace bearings as a pair: If one differential
bearing is defective, replace both differential bear-
ings.
(5) Bearing cones must not be reused if removed.
(6) Turning torque readings should be obtained
while smoothly rotating in either direction.
INTERMEDIATE SHAFT BEARING PRELOAD
The intermediate shaft preload must be checked if
the housing, intermediate shaft, bearing plate, bear-
ings, or transaxle case are replaced.
The intermediate shaft bearing preload procedure
must be done with the transaxle out of the vehicle
and on a bench.
(1) Remove end cover (Fig. 226).
(2) Remove 5th shift fork roll pin (Fig. 227).
(3) Use Special Tool 6252 to hold 5th gear. Remove
input shaft 5th gear nut (Fig. 228).
(4) Remove 5th gear synchro snap ring (Fig. 229).
(5) Remove 5th gear synchro, synchro plate, and
fork.
(6) Remove 5th drive gear off of the input shaft
(Fig. 230).
(7) Remove bearing retainer plate (Fig. 231).
(8) Remove bearing preload shim (Fig. 232).
(9) Bolt down the bearing support plate in two
places (verify dowels are in place).
(10) Seat the intermediate bearing cup against the
bearing.
(11) Measure depth of intermediate bearing cup
with dial depth gauge (Fig. 233).
Fig. 224 Crossover Cable Adjustment
Fig. 225 Auxiliary Vent Installation
Fig. 226 End Cover Removed
NS/GSA±598 MANUAL TRANSAXLE 21 - 57
ADJUSTMENTS (Continued)

(14) Apply a bead of MopartGasket Maker or
equivalent onto bearing support plate. Install bearing
support plate.
(15) Install necessary shim calculated from Step
12
(16) Install bearing retainer plate. Tighten bearing
retainer plate to 17 N´m (250 in. lbs.).
(17) Install 5th drive gear onto the input shaft.
(18) Install 5th gear, synchro, fork, and plate.
(19) Install 5th gear synchro snap ring.
(20) Install 5th gear shift fork roll pin.
(21) Use Special Tool 6252 to hold 5th gear and
install new 5th gear nut at input shaft. Tighten the
retaining nut to 176 N´m (130 ft. lbs.).
(22) Use Special Tool 6930 to stake the 5th gear
retaining nut onto the input shaft (Fig. 234).
(23) Apply a bead of MopartGasket Maker or
equivalent onto end cover. Install 5th gear/synchro
end cover. Tighten bolts to 28 N´m (250 in. lbs.).
SPECIFICATIONS
A-598 (T-750) MANUAL TRANSAXLE
DESCRIPTION TORQUE
Back-up Lamp Switch..........27N´m(20ft.lbs.)
Bearing Retainer Plate........28N´m(250 in. lbs.)
Crossover Cable Adj. Screw......8N´m(70in.lbs.)
Drain Plug..................23N´m(17ft.lbs.)
Differential Housing...........54N´m(40ft.lbs.)
Diff. Bearing Retainer.........61N´m(45ft.lbs.)
Diff. Ring Gear Bolts..........94N´m(70ft.lbs.)
End Cover Bolts..............28N´m(21ft.lbs.)
Extension Housing...........28N´m(250 in. lbs.)
Gearshift Housing...........28N´m(250 in. lbs.)
*Input Gear Nut............176 N´m (130 ft. lbs.)
Input Retainer..............28N´m(250 in. lbs.)
Reverse Blocker.............12N´m(105 in. lbs.)
Transaxle Case Bolts..........29N´m(21ft.lbs.)
Vehicle Speed Sensor...........7N´m(60in.lbs.)
Vent........................6N´m(60in.lbs.)
NOTE: *The 5th/input gear is torqued to specifica-
tion and then staked in two places using Special
Tool 6930.
NOTE: Bolts that have thread sealer or torque lock
patches should not be reused. Always install new
bolts in these applications.
A-558 MANUAL TRANSAXLEÐRHD VEHICLES
DESCRIPTION TORQUE
Back-up Lamp Switch..........27N´m(20ft.lbs.)
Bearing Retainer Plate........28N´m(250 in. lbs.)
Crossover Cable Adj. Screw......8N´m(70in.lbs.)
Drain Plug..................23N´m(17ft.lbs.)
Modular Clutch to Drive
Plate Bolts................74N´m(55ft.lbs.)
Transaxle Case Bolts..........29N´m(21ft.lbs.)
Vehicle Speed Sensor...........7N´m(60in.lbs.)
Vent........................6N´m(60in.lbs.)
Fig. 233 Measure Depth Of Cup
Fig. 234 Staking 5th Gear Retaining Nut
NV T750 (A-598) MANUAL TRANSAXLE FLUID
FILL
TRANSAXLEMETRIC MEA-
SUREU.S. MEASURE
NV T750 1.9-2.2 Liters 2.0-2.3 Quarts
NS/GSA±598 MANUAL TRANSAXLE 21 - 59
ADJUSTMENTS (Continued)

TIRE WEAR PATTERNS
Under inflation will cause wear on the shoulders of
tire. Over inflation will cause wear at the center of
tire.
Excessive camber causes the tire to run at an
angle to the road. One side of tread is then worn
more than the other (Fig. 5).
Excessive toe-in or toe-out causes wear on the
tread edges and a feathered effect across the tread
(Fig. 5).
TIRE NOISE OR VIBRATION
Radial-ply tires are sensitive to force impulses
caused by improper mounting, vibration, wheel
defects, or possibly tire imbalance.To find out if tires are causing the noise or vibra-
tion, drive the vehicle over a smooth road at varying
speeds. Note the noise level during acceleration and
deceleration. The engine, differential and exhaust
noises will change as speed varies, while the tire
noise will usually remain constant.
LEAD CORRECTION CHART
Use the following chart to correct a vehicle leading
or drifting problem.
Fig. 5 Tire Wear Patterns
22 - 4 TIRES AND WHEELSNS
DIAGNOSIS AND TESTING (Continued)