2003 DODGE RAM Service Repair Manual

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Page 177 of 2895

DODGE RAM 2003 Service Repair Manual (10) Fill differential to specifications.
(11) Remove lifting device from axle and lower the
vehicle.
ADJUSTMENTS
Ring and pinion gears are supplied as matched
sets only. Compensation for pinion depth

Page 178 of 2895

DODGE RAM 2003 Service Repair Manual (8) Slowly slide the scooter block across the pinion
height block over to the arbor (Fig. 4). Move the
scooter block till dial indicator crests the arbor, then
record the highest reading.
(9) Select a

(8) Slowly slide the scooter block across the pinion
height block over to the arbor (Fig. 4). Move the
scooter block till dial indicator crests the arbor, then
record the highest reading.
(9) Select a shim equal to the dial indicator read-
ing.
(10) Install the select shim between the rear pin-
ion bearing and the pinion gear head.
DIFFERENTIAL CASE BEARING PRELOAD AND
GEAR BACKLASH
Backlash is adjusted by moving the adjusters in
and out or both. By moving the adjusters the case/
ring gear will move closer or further away from the
pinion. In most cases this adjustment can be used to
achieve the correct gear tooth pattern and set the
case bearing preload.
(1) Remove adjuster lock bolts and adjuster locks
(Fig. 5).
(2) Loosen the differential bearing caps.
(3) Slide differential case toward the pinion gear
until the gears make contact/zero backlash. If zero
backlash cannot be obtained, turn the pinion side
adjuster until zero backlash is obtained.
(4) Holding the differential case toward the pinion
gear, turn bearing adjusters with Spanner Wrench
8883 (Fig. 6) until they make contact with the differ-
ential bearings/cups.
(5) Back off the ring gear side adjuster 4 holes, to
obtain initial ring gear backlash.
(6) Install ring gear side adjuster lock and bolt. Do
not tighten adjuster lock bolt at this time.
(7) Tighten pinion gear side adjuster firmly
against the differential case bearing cup.
(8) Rotate the pinion several times to seat the def-
erential bearings.(9) Loosen pinion gear side adjuster until it is no
longer in contact with the bearing cup, then tighten
it until it makes contact.
(10) Tighten pinion gear side adjuster an addi-
tional:
²New Bearings:6 Adjuster Holes
²Original Bearings:4 Adjuster Holes
(11) Install pinion gear side adjuster lock and bolt.
Do not tighten adjuster lock bolt at this time.
Fig. 4 PINION GEAR DEPTH MEASUREMENT
1 - ARBOR
2 - SCOOTER BLOCK
3 - DIAL INDICATOR
Fig. 5 ADJUSTER LOCK BOLT
1 - DIFFERENTIAL CASE
2 - ADJUSTER LOCK
3 - ADJUSTER LOCK BOLT
4 - BEARING CAP BOLT
Fig. 6 ADJUSTER SPANNER WRENCH
1 - WRENCH
2 - DIFFERENTIAL
DRREAR AXLE - 10 1/2 AA 3 - 105
REAR AXLE - 10 1/2 AA (Continued)

Page 179 of 2895

DODGE RAM 2003 Service Repair Manual (12) Tighten bearing cap bolts to 115 N´m (85 ft.
lbs.).
(13) Tighten adjuster lock bolts to 33 N´m (24 ft.
lbs.).
(14) Measure ring gear backlash with a Dial Indi-
cator C-3339 and Dial Indicator S

Page 180 of 2895

DODGE RAM 2003 Service Repair Manual ²Ring gear too far away from pinion gear (Fig.
11). Decrease the backlash, by moving the ring closer
to the pinion gear using the adjusters.
²Ring gear too close to pinion gear (Fig. 12).
Increase t

Page 181 of 2895

DODGE RAM 2003 Service Repair Manual SPECIFICATIONS
AXLE SPECIFICATIONS
DESCRIPTION SPECIFICATION
Axle Ratio 3.73, 4.10
Ring Gear Diameter 266 mm (10.5 in.)
Ring Gear Backlash 0.13-0.18 mm (0.005-0.007 in.)
Pinion Bearing Preload - New B

Page 182 of 2895

DODGE RAM 2003 Service Repair Manual BRIDGE 938
PINION DEPTH GAUGE 6730
GAUGE BLOCK 8899
ARBOR DISCS 6732
PULLER C-293-PA
ADAPTERS 8879
ADJUSTER WRENCH 8883
BEARING INSTALLER 8956
DRREAR AXLE - 10 1/2 AA 3 - 109
REAR AXLE - 10 1/2 AA (Co

Page 183 of 2895

DODGE RAM 2003 Service Repair Manual PINION INSTALLER 8981
CUP INSTALLER 8959
CUP INSTALLER 8960
CUP INSTALLER 8961
FLANGE PULLER 8992
FLANGE WRENCH 8979
PINION DRIVER 8977
PLUG 8888
3 - 110 REAR AXLE - 10 1/2 AADR
REAR AXLE - 10 1/2 AA

Page 184 of 2895

DODGE RAM 2003 Service Repair Manual AXLE SHAFTS
REMOVAL
(1) Remove axle shaft flange bolts (Fig. 15).
(2) Slide axle shaft out of the axle tube.
(3) Remove axle shaft gasket.
INSTALLATION
NOTE: Axle flange bolts must be replaced or use

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