GMC 1976 ZEO 6083 Maintenance Manual page 495

INSPECT SUN GEAR SHAFT
1 . Inspect shaft for cracks or splits .
2. Inspect splines for damage .
3 . Inspect bushings for scoring or galling.
4. Inspect ground bushing journals for damage .
5. Be sure oil lubrication hole is open .
ASSEMBLE GEAR UNIT (FIGURE
55)
1 . Install rear internal gear on end of main shaft
that has snap ring groove and install snap ring .
2. Install races and thrust bearing on inner face
of rear internal gear, retaining races and bearing with
petrolatum . Proceed as follows:
a. Install large diameter race first, with flange
facing up, Figure 56 .
Figure 55-Gear Unit Components
TRANSMISSION 7- 4 7
b. Install thrust bearing in race .
c. Install small diameter race on bearing with
inner flange facing down .
3 . Lubricate pinion gears in output carrier with
transmission fluid and install output carrier on main
shaft so that pinion gears mesh with rear internal
gear .
4. Place the above portion of the build-up
through hole in bench so that the mainshaft hangs
downward .
5. Install the rear internal gear to output flange
thrust races and bearings as follows: (Retain with
petrolatum) (figure 57).
a. Place the small diameter race against the
internal gear with the center flange facing up .
b. Place the bearing on the race .
c. Place the second race on the bearing with
the outer flange cupped over the bearing .
SNAP
RING
OUTPUT
CARRIER
ASSEMBLY
FLANGED
THRUST
BEARING
WASHER
(METAL(
O.D. FLANGE
RACE
OUTPUT
FLANGE " j ~"' L'' )
SNAP RING
I .D. FLANGE
RACE
THRUST WASHER
(NON-METAL OR METAL)
FRONT INTERNAL
GEAR RING
REACTION
CARRIER
ASSEMBLY ROLLER
ASSEMBLY
REAR
INTERNAL
GEAR
O.D . FLANGE
RACE
I . D . FLANGE
ACE
BEARING
MAIN SHAFT
BEARING
SUN GEAR
SHAFT
I .D. FLANGE
RACE
A-4329