Dodge 2000 DURANGO Service Manual page 98

3 - 48 C205F AXLE
CLEANING AND INSPECTION (Continued)
• Ring gear for damaged bolt threads. Replaced as
a matched set only.
• Companion flange for cracks, worn splines, pit-
ted areas, and a rough/corroded seal contact surface.
Repair or replace as necessary.
• Preload shims for damage and distortion. Install
new shims, if necessary.
ADJUSTMENTS
PINION GEAR DEPTH
GENERAL INFORMATION
Ring gear and pinion are supplied as matched sets
only. The identifying numbers for the ring gear and
pinion are painted onto the pinion gear shaft (Fig.
36) and the side of the ring gear. A plus (+) number,
minus (–) number or zero (0) along with the gear set
sequence number (01 to 99) is on each gear. This first
number is the amount (in thousandths of an inch)
the depth varies from the standard depth setting of a
pinion marked with a (0). The next two numbers are
the sequence number of the gear set. The standard
setting from the center line of the ring gear to the
back face of the pinion is 99.690 mm (3.925 in.). The
standard depth provides the best teeth contact pat-
tern. Refer to Backlash and Contact Pattern Analysis
Paragraph in this section for additional information.
Fig. 36 Pinion ID Numbers
1 – VARIANCE NUMBER
2 – SEQUENCE NUMBER
Compensation for
achieved with select shims. The shims are placed
between the rear pinion bearing cone and the pinion
gear head (Fig. 37).
If a new gear set is being installed, note the depth
variance marked on both the original and replace-
ment pinion. Add or subtract the thickness of the
pinion depth variance
Fig. 37 Shim Locations
1 – PINION GEAR DEPTH SHIM
2 – DIFFERENTIAL BEARING SHIM-PINION GEAR SIDE
3 – RING GEAR
4 – DIFFERENTIAL BEARING SHIM-RING GEAR SIDE
5 – COLLAPSIBLE SPACER
original depth shims to compensate for the difference
in the depth variances. Refer to the Depth Variance
charts.
Note where Old and New Pinion Marking columns
intersect. Intersecting figure represents plus or
minus amount needed.
Note the painted number on the shaft of the drive
pinion (–1, –2, 0, +1, +2, etc.). The numbers repre-
sent thousands of an inch deviation from the stan-
dard. If the number is negative, add that value to the
required thickness of the depth shim(s). If the num-
ber is positive, subtract that value from the thickness
of the depth shim(s). If the number is 0 no change is
necessary. Refer to the Pinion Gear Depth Variance
Chart.
PINION DEPTH MEASUREMENT AND ADJUSTMENT
Measurements are taken with pinion cups and pin-
ion bearings installed in housing. Take measure-
ments with a Pinion Gauge Set, Pinion Block 8177,
Arbor Discs 8541, and Dial Indicator C-3339 (Fig.
38).
(1) Assemble Pinion Height Block 6739, Pinion
Block 8177, and rear pinion bearing onto Screw 6741
(Fig. 38).
(2) Insert assembled height gauge components,
rear bearing and screw into axle housing through the
is
pinion bearing cups (Fig. 39).
(3) Install front pinion bearing and Cone 6740 onto
the screw hand tight (Fig. 38).
DN