1948-1952 Shop Service Manual - - Hudson-Essex-Terraplane Club

11 - 24 REAR AXLE
FIGURE 49
FIGURE 48
12. Install drive pinion rear bearing cup, using tool J-2645
and handle J-872-5, placing shims between cup and
housing. The thickness of the shim pack is determined
by the shims removed during disassembly and the
etched marking on the end of the pinion. The "+" or "-"
figure indicates the axial position of the pinion in r e l a
t i on t o the center line of the axle housing. For
example, if a drive pinion marked +2 was originally
Installed with a shim pack measuring .035" thick and
the new pinion is marked -1, the shim pack should be
increased .003" to bring the new pinion to its correct
position. The new shim pack should therefore be .038"
thick. Shims are available in .003", .005" and .010"
thicknesses.
16. With gauge block held in position against end of drive
pinion by clamp screw, loosen thumb screw in end of
gauge block and move plunger out of block until head
contacts gauge arbor as shown in Figure 49. Lock
plunger by turning thumb screw, using care not to disturb
plunger position.
17. Back off screw in clamp holding gauge block against
pinion, remove gauge block and with a 2 to 3 inch
micrometer, measure distance from end of anvil to top of
plunger head as shown in Figure 50. This measurement
r e p r e s e n t s the distance from the rear face of the drive
pinion to the center line of the rear axle and should be
2.625" for a correctly adjusted, 14 tooth, 3.07 to 1 ratio
drive pinion having a zero "0" marking. With a pinion
marked +2 the micrometer reading should be 2.623" and
for a pinion marked -3, the reading should be 2.628".
13. Install drive pinion front bearing cup using replacer
S-2534. Place drive pinion in position and Install front
bearing cone and rolls, coating parts with lubricant.
14. Check the drive pinion position with pinion setting
gauge J-5223, holding the gauge block against rear face
of pinion with clamp bar and screw, Figure 49.
15. Mount discs of pinion setting gauge J-5223 on gauge
arbor and Install gauge in differential bearing bores of
axle. housing, Figure 49. Place differential bearing caps
in position and tighten bolts finger tight. Be sure to
clean parts before placing gauge and caps in position.
FIGURE 50