Copyright © 1996 General Motors Corp. 6–29
REBUILD OF SUBASSEMBLIES
Figure 6–48. Center Support Assembly
Figure 6–49. Installing Center Support Bushing
6–14. PLANETARY GEAR UNIT
a. Disassembly (Foldout 10,A)
NOTE:
If available, support the planetary vertically in an en-
gine cylinder liner or through a hole in the work
bench.
Figure 6–50. Installing Self-Locking Retainer Washer
(1) Remove front planetary sun gear 6.
(2) Lift front planetary carrier assembly 8
from ring gear 18.
(3) Remove thrust washer 7 from front plan-
etary carrier assembly 8, and thrust washer 16 from
center planetary carrier assembly 20. Refer to Para-
graph 6–16 for rebuild of the front planetary carrier as-
sembly.
(4) Remove center planetary sun gear 19 and
thrust washer 27.
(5) Remove snapring 17 that retains front
planetary ring gear 18 to planetary connecting drum
28. Remove ring gear 18 and center planetary carrier
assembly 20 from drum 28. Refer to Paragraph 6–16
for rebuild of the center planetary carrier assembly.
(6) Remove main shaft assembly 4. Remove
snapring 29, center ring gear 30, spiral retaining ring
34, and rear sun gear 31.
(7) Remove snapring 43 that holds rear plan-
etary carrier assembly 36 to planetary connecting
drum 28.
(8) Remove output shaft assembly 45.
NOTE:
Be sure to inspect the output shaft for raised metal
at the front end. If damage is found, remove the
raised metal with a soft honing stone. If damage
cannot be removed, replace the output shaft. Re-
place the adjacent bearing and race, and carefully
inspect the rear sun gear for damage.
V02954
SUPPORT
500 LB
(2224 N)
BUSHING
90°
Press bushing flush to
0.010 in. (0.25 mm)
below this surface
Identifying notch of
bushing to show on
this side of support
A
A
SECTION A-A
BUSHING
J 24778 (for models
without lockup)
J 39735 (for models
with lockup)
CENTER
SUPPORT
H02261.01
H02955
J 24453
CENTER
SUPPORT
THIRD
CLUTCH
PISTON
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