Jeep UNIVERSAL CJ-2A - Page 201

N
REAR AXLE
If replacem ent is necessary, use Axle Shaft Oil
Sea l D ri ver W -186, Fig. 237. Also check the gr ease
retainer and r ep l ace it if there is any doubt of
its condition.
Adjust the wheel b ea rings as o utli ned in S ection Q.
N- 5. DIFFERENTIAL
Differenti als of both front and r ea r ax l es are covered
here with th e exception of Powr - Lok. Powr -L ok
differ entials are covered startin g with Par. N -1 4.
Before disass em bling the differential, it is advisable
to d ete rmin e through ins pection the cause of
difficulty or fa ilur e of the p ar ts. Drain libric ant
from the diff erentia l housin g and th en remove the
differential cover. Wash th e differential pa rts
thoroughly with solvent so the parts can be care -
fully inspect ed. Should it be determined by this
inspection that the di fferentia l r eq uir es overhaulin g,
the axl e must be removed from the vehicle.
N- 6. Di sasse mbl y
• Ref er to Fig. 238 .
a. Rem ove the axle shaf ts. R efer to P ar. N -3
or N -4 for rear axles and S ection M for front axles.
b. Remov e the housing cover and four screws
hold i ng the two differential side bea ring ca ps in
posifion. M ake sure there are matching l ette rs or
other m arks on the caps and the housing so that
each cap can be reinstalled in the same position
and locati on fr om which it is removed.
c . It is necessary to spread the ca rrier as th e
differential bearing has initial preload. Use Ho usin g
S preader Tool W -129, as shown in Fig. 239, to
spread the housing. Clamp on a di al ind i cator. Fr om
the side, measure the carrier spread . Wh en the
spreadin g f orce is app li ed, do no t excee d a limit of
.020" [0,50 mm.l. R emove the dial indicator. Care-
fully pry the different i al case loose, using pry bars
at the heads of the ring gear bolts and carrier
casting.
F IG. 239- DIFFERENTIAL CARRIER SPREADER
200
C A
UT I ON : Re move the spreader tool to prev e nt
the possibilit y of the carri er taking a set.
FIG . 240 REMOVING DIFFERENTIAL
d . Sh ould the sp read er tool be unavail able, use
two pry bars, one on each side of the differential
ca se opening, to pry out the differential as snown
in Fig . 240.
e. Turn down the lock strap tabs and rerrove the
screws and lock straps ho lding the diff erent ial
rin g gear to the differential case.
f . Th e differentia l shaft is held in place by a lock
pin . Use a small punch as shown in Fi g. 24 1 to
drive out the lock pin. R emove the differential
shaft.
g. Using care not to lose th e pinion thrust was he rs.
remove the different i al pinion gears .
h. To rem ove the drive pinion, first remov e the
univers al joint end yoke asse mbly. Us e Tool
C-3 281 to h old the shaft as shown in Fig. 242
wh ile rem ov in g the nut. Use Puller. T oo l W- 17 2,
or C-452 to remove the end yoke as shown in Fig.
243.
i. R emove the pinion sh aft oil seal. Use Puller.
Tool W -251 as shown in Fi g. 244.
FIG. 2~I - REMOVING LOCK PI N