Pontiac FIREBIRD 1972 Service Manual page 373

TYPE C STANDARD DIFFERENTIAL 4C- 5
Fig. 4C-6 Removing Differential Case
2. Position case in vise and remove side bearings using
Puller 5-22888 and Plug J-8107-4 (all exc. B Series,
"G" and "K" coded axles) or plug J-8 107-2 (B Series,
"G" and "K" coded axles). See Fig. 4C-7.
3. Loosen and remove ring gear to case attaching bolts
and lock washers. Tap ring gear off case using a soft
face hammer.
CAUTION: Do not pry ring gear from case as
machined surfaces may become damaged.
ASSEMBLE
1. Install guide pins, made from 3/8"-24x1-1/2" long
cap screws with heads cut off and ends slotted, into
ring gear.
2. Position ring gear over pilot diameter of case with
guide pins aligned in case holes. Install ring gear bolts
and lock washer and tighten evenly and alternately to
specifications (90 1b.ft.)
3. Install case side bearings using Installer J-5292 (all A
and
G Series). J-22761 (all F, X and B Series with
"G" or " K coded axles) or J-8901 (B Series, "P"
or "M" coded axles). See Fig. 4C-8.
4. Install side gears and respective thrust washers.
5. Install Pinion Gears as follows: Turn case so that the
B SERIES. G
on
K AXLES)
IES. G AN0 K AXLES)
-
p~
---
~ ~
Fig. 4C-7 Removing Differential Side Bearings
access hole is pointed upwards. Install one pinion
gear and its thrust washer. Without moving side or
pinion gears, turn case so that access hole is pointed
downward. Install second pinion gear and thrust
washer 180" from the first. Hold lower pinion gear in
place, and carefully turn the case 90" to align gears
with the pinion shaft holes. Hold one pinion gear
through the lower pinion shaft hole and carefully
rotate the entire assembly until the pinion shaft hole
is in an accessable position.
DRIVE PINION
REMOVE AND DISASSEMBLE
J - 5 2 9 2 U AND G
J-ZZ761IALL F S
J-8901(8 SERIES
SERIES)
;ERIES.
B
AXLES]
, P
AXLE1
1
Fig. 4C-8
-
Installing Differential Side Bearing