Chrysler 300/300 Touring/300C, Dodge Magnum. Instruction - page 97
ADJUSTMENTS
ADJUSTMENT - PINION DEPTH
PINION DEPTH VARIANCE
Ring gear and pinion are supplied as matched sets.
Identifying numbers for the ring gear and pinion are
painted onto the pinion gear shaft 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. The pinion depth variance (1) is
the amount the depth varies from the standard depth
setting of a pinion marked with a (0). The remaining
numbers (2) are the sequence number of the gear set.
The standard depth provides the best gear tooth con-
tact pattern.
Compensation for pinion depth variance is achieved
with select shims (3). The shims are sandwiched
between the pinion head bearing cup (4) and axle
housing.
If installing a new gear, note the depth variance number of the original and replacement pinion. Add or subtract this
number from the original depth shim to compensate for the difference in the depth variances. The numbers repre-
sent deviation from the standard in microns. If the number is negative, add that value to the required thickness of
the depth shims. If the number is positive, subtract that value from the thickness of the depth shim.
3 - 120
REAR AXLE - 198RII
LX
PINION GEAR DEPTH VARIANCE
Original Pinion
Gear Depth
Variance
Replacement Pinion Gear Depth Variance
2
4
2
3
2
2
2
1
0
+1
+2
+3
+4
+4
+0.08
+0.07
+0.06
+0.05
+0.04
+0.03
+0.02
+0.01
0
+3
+0.07
+0.06
+0.05
+0.04
+0.03
+0.02
+0.01
0
2
0.01
+2
+0.06
+0.05
+0.04
+0.03
+0.02
+0.01
0
2
0.01
2
0.02
+1
+0.05
+0.04
+0.03
+0.02
+0.01
0
2
0.01
2
0.02
2
0.03
0
+0.04
+0.03
+0.02
+0.01
0
2
0.01
2
0.02
2
0.03
2
0.04
2
1
+0.03
+0.02
+0.01
0
2
0.01
2
0.02
2
0.03
2
0.04
2
0.05
2
2
+0.02
+0.01
0
2
0.01
2
0.02
2
0.03
2
0.04
2
0.05
2
0.06
2
3
+0.01
0
2
0.01
2
0.02
2
0.03
2
0.04
2
0.05
2
0.06
2
0.07
2
4
0
2
0.01
2
0.02
2
0.03
2
0.04
2
0.05
2
0.06
2
0.07
2
0.08
PINION DEPTH MEASUREMENT
Pinion depth measurement is taken with the pinion head and tail bearing cups pressed into the axle housing without
the shim.
1. Press pinion head bearing cup into housing using
Tools C-4171 (1) and C-4310 (2).
LX
REAR AXLE - 198RII
3 - 121
2. Press pinion tail bearing cup into housing using
Tools C-4171 (1) and D-146 (2).
3. Install Pinion Height Block 6739 (3), Pinion Gage
Block 9227 (2), and pinion head bearing cone (1)
onto Screw 6741. Install assembly into axle hous-
ing and through bearing cups.
3 - 122
REAR AXLE - 198RII
LX
4. Install pinion tail bearing and Cone 6740 (4).
Tighten Cone 6740 by hand until 3.4 N·m (30 in.
lbs.) of rotating torque is measured at Screw 6741
(5).
5. Install Arbor Discs 9228 (1).
LX
REAR AXLE - 198RII
3 - 123
