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7A4-56
1977 PONTIAC SERVICE MANUAL
Fig.
7A4-124
Checking Output Carrier Pinion End Play
PINION REPLACEMENT
PROCEDURE
1. Support carrier assembly on its front face.
2. Using a 1/2" diameter drill, eliminate the stake marks
from end ofthe pinion pin or pins to be replaced. This will
reduce the probability of cracking the carrier when pinion
pins are pressed out.
CAUTION: Do not allow drill to remove any
stock fiom the carrier as this will weaken the part.
3. Using a tapered punch, drive or press pinion pins out
of carrier (Fig. 7A4- 125).
Fig.
7A4-125
Driving Pinion Pin From Carrier (Reaction
Carrier Shown)
4. Remove pinions, thrust washers and roller needle
bearings.
5. Inspect pinion pocket thrust faces for burrs and
remove if present.
6. Install eighteen (1 8) needle bearings into each pinion,
using petrolatum to hold bearings in place. Use pinion pin
as guide (Fig. 7A4- 126).
STEEL
GASHER
/
--
B R O N Z E W A S H E R
2699
I
I
Fig.
7 A 4 - 1 2 6
Planet Pinion
-
Exploded View
7. Place a bronze and steel washer on each side of pinion
so steel washer is against the pinion and hold them in place
with petrolatum.
8. Place pinion assembly in position in carrier and install
a pilot shaft through rear face of assembly to hold parts in
place.
9. Drive a new pinion pin into place while rotating its
pinion from front, being sure that headed end is flush or
below face of carrier (F;~. 7A4-127).
P L A N E T PINION PIN
W A D END U P
Fig.
7A4-127
Driving Pinion Pin Into Carrier (Reaction
Carrier Shown)
10. Place a large punch in a bench vise to be used as an
anvil while staking opposite end of pinion pin in three places.
NOTE:
Both ends of pinion pins must lie below face
of carrier or interference may occur.
OUTPUT SHAFT
1. Inspect bushing for wear or galling. If replacement is
necessary, proceed as follows:
a. Thread Remover J 2 1465- 16 into bushing and, using
Hammer J 2619 and Adapter J 2619-4, remove bushing.
b. Using Installer J 21465-1 with Handle J 8092, install
bushing into place until tool bottoms.
2. Inspect bearing and thrust washer surfaces for
damage.
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