Jeep UNIVERSAL CJ-2A - Page 205

N
REAR AXLE
FIG. 252- PlNION MASTER GAUGE
Assemble the dial ga uge body to the C- clamp by
slipping the housing over the stationary gu i de
pin. H old the ga uge head and the large end of
the C-cla mp in one hand and position it ove r the
p in ion. P r ess t he gUJde pin at the small end of
the C-cla mp into t he threaded e nd of the pinion
a nd Jock it into position with the thumb screw.
Wi th the C-cla mp co rr ectly seated in the d ri ve
pini
on sha ft lathe center and the dial indicator
co nt act point bearing aga in st the differ ent i al
carrier side bearing bore, as sh own in Fig. 251.
ho
ld t he dial gaug e housin g aga m st th e drive
pinion h ea d. Swing the dial ga uge body back and
forth acros s t he b ea rin g bo re and watch the dia l
read in g. The lowest reading ind i cates the center
of the bea ring bore and if the shim pack is of the
correct thi ckness , the dial gauge reading will be
the same as the etc hed ma rk ing 0 :1 the pinion head.
F or exa mple, if the pinion is marked pl us th r ee,
FIG. 253- SETTING DIAL GAUGE TO MASTER
GAUGE BLOCK FOR MODEL 70 AXLE
!- Gauge Bl ock
2-C·Ciamp
3- Spscer
·1- Diol In dicator
the di al should indi cate plus .003". If the pinion
is marked minus three , t he dial should indicate
minus .003". Should the dial reading fail to agree
with the marking on the pin i on head note the
diff ere nce and a corresponding amount of shims
should be added or removed to secure the correct
204
adjustment (reading on dial and pinion ma r king
agree).
NOTE : To increase the dial r ead ing dec r ea se shims;
to decrea se t he dial r ead ing increase shims.
Examp l e: With a dial r ead in g of minus .001" a nd
a pini on mark ing of plus .002" re move .003" sh ims
to obta in a higher di al reading of plus .002 ".
R ec ht: ck the ad jus tment if any c hanges are made.
Be sure to set the di al to the co rrect face of the
master gauge.
Aft er correctly locating the pinion . adjust t he
pinion bearing preload. Start with approximately
.065'' 11.651 mm.J shim pack between the shoulder
of the pi nion and ou te r bearing cup . R eassemble
th e o uter beari ng, yoke. washer, an:i nut . Tighten
FI G . 254 PINION SETT ING GAUGE
to a to rqu e of200 to 220 lb -ft. [27,66 a 30,43 kg-m.].
Us in g an inch -po und torq ue wrench, chec k the ro-
tati ng torq ue (disr ega rd starting torque) . Torqu~
sho uld be I 0 to 25 in ch- pounds [0 , 116 a 0, 288 kg-m.].
A dd or remove shims to ob ta in the rec ommended
rotating t or qu e.
Do not i nsta ll the oil seal until the differe ntial has
been assembled and t he entire unit chec ked. When
FIG. 255- UNIVERSAL JOINT FLANGE
INSTALLING TOOL