Chrysler RAM TRUCK 2500 1994 Service Manual page 144

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REAR SUSPENSION AND AXLE 3 - 37
PINION
G E A R D E P T H VARIANCE
Original Pinion
Gear Depth
Variance
Replacement Pinion Gear Depth Variance
Original Pinion
Gear Depth
Variance
- 4
- 3
- 1
- 1
0
+ 1 +2
+ 3 + 4
+ 4 +0.008
+0.007
+0.006 + 0.005 +0.004 + 0.003 + 0.002 +0.001 0
+ 3
+0.007
+0.006
+0.005 +0.004 + 0.003 +0.002 + 0.001 0 -0.001
4-2 + 0.006 +0.005
+ 0.004
+0.003 + 0.002 + 0.001 0 -0.001
-0.002
+ 1
+ 0.005 + 0.004 +0.003
+0.002
+ 0.001 0 -0.001
-0.002
-0.003
0
+ 0.004 + 0.003
+ 0.002 + 0.001 0 -0.001 -0.002
-0.003
-0.004
- 1
+0.003 + 0.002 + 0.001
0
-0.001 -0.002 -0.003
-0.004
-0.005
- 2
+ 0.002 + 0.001
0 -0.001 -0.002 -0.003 -0.004 -0.005 -0.006
- 3
+ 0.001 0 -0.001
-0.002
-0.003 -0.004 -0.005 -0.006 -0.007
- 4
0 -0.001 -0.002 -0.003
-0.004
-0.005 -0.006 -0.007 -0.008
For example, i f old pinion is plus (+) 1 and the new
pinion is minus (-) 3, intersecting figure is (+)0.004
inch (0.10mm). Add this amount to the original shim.
Or i f the old pinion is (-) 3 and the new pinion is (-)
2, intersecting figure is (-)O.OOl inch (0.025mm). Sub­
tract this amount from original shim. Refer to the
Pinion Gear Depth Variance Chart.
If equipped, the oil slinger must be measured
and the thickness included with the total shim
pack thickness.
Depth shim thickness for the new pinion gear must
be determined before installing differential case i n
housing.
PINION MEASUREMENT AND ASSEMBLY
PINION
G E A R
DEPTH
MEASUREMENT
Pinion gear depth measurement is necessary
when axle housing is replaced or pinion select
shim pack is unknown. It is also recommended
when ring and pinion gears are replaced.
Compensation for pinion depth variance is achieved
with select shims. I n production the shims are placed
between the pinion gear and the inner pinion bearing
cone. For service the shims are placed under the in­
ner pinion bearing cup.
Measurements are taken with pinion cups and pin­
ion bearings installed i n housing. Take measure­
ments with Pinion Gauge Set 6730 and Dial
Indicator C-3339 (Fig. 31).
J8902-46
DIAL INDICATOR
ARBOR DISC
J9403-45
Fig. 31 Pinion Gear Depth Gauge Tools