Pontiac tempest 1968 Service Manual page 139

4A-16
1968 P O N T I A C S E R V I C E MANUAL
J 5 2 9 2 P O N T I A C O N L Y
. J 21028 TEMPEST A N D
FIREBIRD
Fig. 4 A - 2 6 Installing Pinion Shaft Locking Bolt
8. Remove differential case from vise and lubri­
cate outer bearing surfaces.
9. Using installer J 5292-P, J 21028-T or F ,
press on "right side bearing with arbor press. Sup­
port opposite bearing with J 8901-P, J 8980-T or F if
already installed (Fig. 4A-27).
10. Reverse differential case, support previously
installed side bearing with J 8901-P, J 8980-T or F ,
and press on other side bearing, using J 5292 for
Pontiac, J 21028 for Tempest or Firebird (Fig.
4A-28).
J 8901 PONTIAC ONLY
J 8980 TEMPEST AND
FIREBIRD
F i g . 4 A - 2 8 Installing Left Differential Side Bearing
looseness of pinion assembly by shaking. Looseness
indicates need for bearing replacement. If assembly
is run with loose bearings for any extended period,
ring gear and pinion will also need to be replaced.
REMOVE PINION ASSEMBLY
1. Check pinion bearing preload as described on
page 4A-20. If there is no preload reading, check for
J 5292 PONTIAC ONLY
J 21028 TEMPEST AND
FIREBIRD
2. Install holder J 8614-1 on pinion flange by
using two 5/16" bolts with flat washers. Remove
pinion nut and washer (Fig. 4A-29).
3. Pull companion flange from pinion, using puller
J 8614-2 and 3 in holder J 8614-1. To install puller,
back out puller screw, insert puller through holder
and rotate 1/8 turn (Fig. 4A-30).
4. Remove pinion assembly. If necessary, tap
pinion out with soft hammer, being careful to guide
J 8901 PONTIAC ONLY
" J 8980 TEMPEST AND
FIREBIRD
F i g . 4 A - 2 7 Installing Right Differential Side Bearing
Fig. 4A-29 Removing Pinion Nut