Dodge ram truck 3500 1996 Service Manual page 129

B R
DIFFERENTIAL AND DRIVELINE 3 - 63
R E M O V A L A N D I N S T A L L A T I O N ( C o n t i n u e d )
Fig. 16 Bearing Caps & Bolts
REMOVAL
(1) Remove differential from axle housing.
(2) Place differential case In a suitable vise with
soft metal jaw protectors.
(3) Remove bolts holding ring gear to differential
case.
(4) Using a soft hammer, drive ring gear from dif­
ferential case.
RING GEAR INSTALLATION
CAUTION: Do not reuse the bolts that held the ring
gear to the differential case. The bolts can fracture
causing extensive damage.
(1) Using a suitable solvent, wash oil residue from
differential case and ring gear.
(2) Using a suitable file, remove burrs or sharp
edges that may cause ring gear to not mate flush
with differential and exciter ring.
(3) Thread two pilot studs C-3288-B in ring gear
180° across from each other to aid alignment.
CAUTION: Do not use open flame to heat ring gear,
damage to ring gear can result.
(4) Using a heat lamp or paint stripping heat gun,
warm ring gear to no greater than 150° C (300° F).
(5) Invert the differential case and start two ring
gear bolts. This will provide case-to-ring gear bolt
hole alignment.
(6) Install new ring gear bolts and draw ring gear
to exciter ring.
(7) Place differential case i n a suitable vise with
soft metal jaw protectors.
(8) Alternately tighten bolt holding ring gear to
differential to 102 N-m (75 ft. lbs.) torque.
When installing differential in axle housing after
ring and pinion gear replacement, pinion depth, side
bearing preload, and gear lash will require adjust­
ment.
EXCITER RING
REMOVAL
The ring gear must be removed before the RWAL/
ABS brake exciter ring can be replaced.
(1) Remove exciter ring with a hammer and drift.
INSTALLATION
(1) Heat the replacement exciter ring with a heat
lamp or by immersing in a hot fluid. The tempera­
ture should not exceed 149°C (300°F). Do not use a
torch to heat the ring.
(2) After heating, quickly position the exciter ring
on the differential case adjacent to the flange.
PILOT
Fig. 17 EXCITER RING
PINION GEAR AND BEARINGS
Before removing the pinion flange, measure and
record the rotation resistance of the pinion gear
using a torque wrench. Use this measurement when
installing the pinion gear using the original bearings.
REMOVAL
(1) Remove pinion gear nut and washer. Use
Puller C-452 and Wrench C- 3281 to remove the pin­
ion yoke.
(2) Drive pinion gear out of housing with plastic or
rawhide hammer. This will damage the front
bearing rollers and bearing cup. The front
bearing and cup must be replaced.
(3) Remove the collapsible preload spacer
(4) Remove the pinion seal with Puller C-748.
(5) Remove the front and rear bearing cups with
Remover Set C-4306 and Handle C-4171.
(6) Remove rear bearing from pinion shaft (Fig.
18). Remove and record the pinion gear depth shims.
(7) Using remover C-4306 and handle C-4171,
remove rear pinion bearing cups from axle housing.