Pontiac tempest 1968 Service Manual page 140

S T A N D A R D DIFFERENTIAL
4A-17
J 8 6 1 4 - 1 J 8614=2 J 8 6 1 4 - 3
F i g . 4 A - 3 0 Removing Companion Flange
pinion with hand to avoid damage to bearing outer
races.
DISASSEMBLE PINION ASSEMBLY
NOTE; Both front bearing and outer race, and
rear bearing and outer race, are matched parts.
If either bearing is to be replaced, its matching
outer race must also be replaced.
1. I f replacing rear pinion bearing or changing
pinion depth setting, remove rear pinion bearing from
pinion shaft, using remover J 9746-P, J 21493-T or
F with holder J 6407-1 (Fig. 4A-31).
2 . I f replacing rear pinion bearing, drive outer
race from c a r r i e r , using a drift.
3 . Pry pinion o i l seal from c a r r i e r and remove
front pinion bearing. I f replacing this bearing, drive
its outer race from carrier, using a drift.
F i g . 4A-31 Removing Rear Pinion Bearing
CLEANING AND INSPECTION
1. Check drive pinion stem and gear for excessive
wear.
NOTE: Ring gears and pinions are matched at
the factory and are serviced only in sets. Never
attempt to replace either a ring gear or pinion
without its matching member.
2 . Thoroughly clean and inspect carrier for cracks
or other damage.
3. Be sure o i l passage In carrier is clean and
clear.
4 . Inspect bearing cap and bolt threads i n c a r r i e r .
Clean out metal filings and chips.
5. Carefully inspect pinion bore and shoulders
against which pinion bearing outer races seal. They
must be free of b u r r s , nicks or material which
would prevent proper seating of bearing outer races.
NOTE: If axle housing (carrier and tube assem­
bly) is being replaced, thoroughly clean and in­
spect new housing, paying particular attention to
machined surfaces in bearing caps and carrier.
Be sure all metal filings and foreign material are
removed from the bearing cap bolt holes in the
carrier. Be sure bearing caps seat squarely on
carrier. Use mill file lightly to remove nicks
and burrs.
INSTALL PINION BEARING OUTER RACES
1. I f replacing rear pinion bearing, install new
outer race by using installer J 9745-P, J 6197-T or
F with driver handle J 8092 (Fig. 4A-32).
Fig. 4 A - 3 2 Installing Rear Pinion Bearing Outer Race