Chrysler RAM TRUCK 2500 1994 Service Manual page 97

2 - 40 FRONT SUSPENSION AND AXLE
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Note where Old and New Pinion Marking columns
intersect. Intersecting figure represents plus or mi­
nus amount needed.
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 (-)0.001 inch (0.025mm). Sub­
tract this amount from original shim. Refer to the
Pinion Gear Depth Variance Chart.
DIFFERENTIAL AND PINION MEASUREMENT
DIFFERENTIAL ZERO END PLAY
MEASUREMENT
(1) Place Master Differential Bearing D-345 for 44
axle or D-343 for 60 axle on the case hubs (Fig. 42).
J9402-64
Fig. 42 Master Bearing Tools On Hubs
(2) Install a pilot stud at the right side of housing.
Attach Dial Indicator to the pilot stud. Load indica­
tor plunger against the back of the ring gear (Fig.
43).
(3) Insert a small pry bar between the bearing cap
and left side of differential case. Pry the case as far
as possible to right side (Fig. 43). Zero the dial indi­
cator pointer.
(4) Pry the case to left side and record the travel
distance.
The measurement above is the shim thickness
necessary for case zero end-play. The total
thickness will be determined during the ring
gear backlash adjustment.
(5) Remove indicator and pilot stud.
Fig. 43 Differential Case End Play Measurement
PINION GEAR 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.
Measurements are done with pinion cups and pin­
ion bearings installed i n housing. Take measure­
ments with Pinion Gauge Set 6730. Use Pinion Block
from gauge set 6734 for 44 axle or 6736 for 60 axle
(Fig. 44).
DIAL INDICATOR
ARBOR DISC
J9403-45
Fig. 44 Pinion Gear Depth Gauge Tools