1956 AMC Hudson Technical Service Manual Supplement

110 TECHNICAL SERVICE MANUAL
differential case.
Use a brass drift, tap the ring gear from the case. Do not nick
the ring gear face of the differential case or drop the ring gear.
Differential Pinion Gears and Shaft Removal
Use a suitable punch to drive out lock pin that holds differential
pinion shaft in place.
The pinion shaft can then be driven out and the thrust
block can be dropped out through the differential side gear.
Roll the differential pinion gears around on the side gears
until they can be lifted out through the holes in the case.
Then lift out the side gears and their thrust washers.
Pinion Gear and Shaft Removal
Inspect the rear axle companion flange for face run- out
using a dial indicator (Fig. 3). The runout should not exceed
.002".
FIGURE 4—Remove the Rear Axle Pinion
Flange with Tool J-2984
on the pinion shaft controls the pinion bearing preload.
Therefore, tag to identify it at time of reassembly.
The pinion gear and rear bearing may now be removed
from the rear of the housing.
Pinion Bearing Cups
Recesses are located behind each pinion bearing cup to
provide a means of driving the cup from the housing. The
cups should be driven out of the housing using a brass punch.
CAUTION: Keep the cups square in the bore to
prevent damaging the cup bores.
Remove shims used to adjust the pinion depth in the
housing from behind rear bearing cup. Check thickness of
each shim, record total thickness, and tie shims together for
reinstallation.
Pinion Rear Bearing Removal
FIGURE 3—Inspect Rear Axle Companion
Flange Face Runout
Remove the pinion shaft nut while holding the pinion
shaft flange. The flange can be held by installing two of the
flange bolts and holding with a large screw driver blade, pry
bar, or with a suitable spanner type wrench. Use extreme
care to avoid damage to the flange surfaces.
Remove the companion flange. This is a press fit, use
flange puller J-2984 (Fig. 4). Do not drive the flange off the
shaft.
The oil seal and retainer may now be removed. Remove
the pinion shaft oil slinger.
Tap the end of the pinion shaft with a fibre hammer to
free the front bearing cone from the pinion shaft and remove
the bearing.
The shim pack located between the bearing and a shoulder
The pinion bearing is a press fit on the pinion shaft. Attach
pinion bearing remover J-2245-A in holder J-358-1 and use
an arbor press to remove the pinion bearing.
DIFFERENTIAL AND DRIVE PINION
ASSEMBLY AND ADJUSTMENTS
To insure a uniform method of adjusting rear axles, all
specifications for correct adjustment are established on the
basis of dry parts.
New thrust washers and oil seals should be installed at
time of assembly.
Assembling the Differential Gears
Install thrust washers on the side gears and install the gears
in the bores of the differential case.
Install thrust washers behind the differential pinion gears
and mesh the gears with the side gears so the holes are
opposite and in line with each other.