Ford COUGAR 1968 Shop Manual page 122

4-1 8
GROUP 4
-
Rear Axle
D R l V E P l N f O N A N D GEAR
substitute a nominal shim for the ori-
SET
ginal and use the tooth pattern check
to determine i f further shim changes
- Individual differences in machining are required. Nominal shim thickness
2-57
the carrier casting and the gear set re-
is indicated in Part 4-4, Specifications.
quire a shim between the pinion rear
A new ring gear and pinion should
12.15 L B , F T ,
bearing cone and the pinion gear to. always be installed in an axle as a
locate the pinion for correct tooth con- matched set (never separately). Be
U-BOLT
-
4529 2 REQ'D.
E 1 3 5 1 . 8
tact with the ring gear.
sure the same identifying (matching)
When replacing a ring gear and
number, painted in white, appears on
FIG. 14-Drive Shaft-to-Axle
pinion it should be noted that the
the bolt hole face of the ring gear and
U-Joint Connection
original factory installed shim is of
on the head of the drive pinion (Fig.
the correct thickness to adjust for in-
23).
P I N I O N BEARING CUPS dividual variations in both the carrier
4. After determining the correct
DO not remove the pinion bearing
casting dimension and in the original
shim thickness as explained in the
cups from the carrier casting unless
gear set dimension; therefore, to select
foregoing steps, install the new pin-
the cups are worn or damaged.
the correct shim thickness for the new
ion and ring gear as outlined under
If the pinion bearing cups are to
gear set to be installed, follow these
be re~laced. drive them out of the steps:
Carrie; casting with a drift. Install
1. With a micrometer, measure the
DIFFERENTIAL CASE,
the new cups with the tool shown in
Fig. 22. Make sure the cups are prop-
thickness of the original shim removed
BEARINGS, A N D R I N G
erly seated in their bores.
~f
a 0,0015-
from the axle and use the same thick-
GEAR
feeler gauge can be inserted be-
ness upon installation of the replace-
I f the ring gear runout check (be-
tween a cup and the bottom of its bore
ment carrier assembly or drive pinion.
fore disassembly) exceeded specifica-
a t any point around the cup the cup
2. If further shim change is neces- tions, the condition may be caused by
is not properly seated.
sary, it will be indicated in the tooth
a warped gear, a defective case, or ex-
Whenever the cups are replaced,
pattern ,-heck.
cessively worn differential bearings.
the cone and roller assemblies should
To determine the cause of exces-
also be replaced. 3. If the original shim is lost, sive runout proceed as follows:
DIFFERENTIAL P I N I O N SHAFT
DIFFERENTIAL P I N I O N GEAR
A N D THRUST WASHER
a@
a
@ ! $
@
r
@
@
DIFFERENTIAL SIDE GEAR
COVER A N D GASKET SHAFT RETAINER
A N D THRUST WASHER
GEAR ATTACHING BOLT
PINION AND RING GEAR
P I N I O N LOCATING SHIMS
BEARING AND CUP
LE SHAFT SEAL
WHEEL BEARING
I
WHEEL BEARING RETAINER
FLANGE
I
FIG. 15-Disassembled Rear Axle