Chevrolet 1977 10 Series, Repair Manual, Page: 78 / 468

4B-6
OVERHAUL MANUAL
RING GEAR
01Q.. TO M A IN T A IN PROPER B A C K LA S H (.0 0 5 ” - .0 0 8 "), ring gear is + 01C).,
~
2 4
q " moved away from pinion by subtracting .010” shims fro m ring gear — ~27 5 ”
side and adding .0 1 0 " shims to o ther side
+ 0 0 4 " O B T A IN PROPER P R E LO AD on side bearings, add .0 0 4 " shims n n d "
— - to each side. — — -
.2 4 4 "
Shim dim ension required
fo r ring gear side
Shim dim ension required
fo r opposite side
.279'
CARRIER
A-SERVICE SPACER
B - SERVICE SHIM
C - FEELER GAUGE
BEARING
BEARING
CARRIER
EXAMPLE
RING GEAR SIDE
Com bined to ta l o f:
Service Spacer ( A )
Service Shim ( B )
Feeler Gauge (C )
OPPOSITE SIDE
Com bined to ta l of:
Service Spacer ( A )
Service Shim (B )
Feeler Gauge (C )
Fig. 4 B -7 --D e te rm in in g S id e B e a rin g Shim R e q u ire m e n ts 7 - 1 /2 "
side an equal am ount.
DRIVE PINION
Removal
1. Remove differential as previously outlined.
2. Check torque required to rotate drive pinion as
deseribed under "Drive Pinion - Installation and
A djustm ent". If there is no torque reading, check for
looseness of pinion assembly by shaking (push-pull) the
com panion flange. Looseness indicates the need for bearing
replacement.
3. Install H older J-8614-11 on flange by using two bolts
with flat washers, as shown in figure 4B-13. Position J-8614-
11 on flange so that the four notches are toward the flange.
4. Remove pinion nut and washer.
5. Thread end of J-8614-3 into small O.D. end of J-8614-
2. Then with J-8614-11 installed as in step 3, insert J-8614-2
into J-8614-11 and turn it 1/8 of a turn to locked position.