Drive P In Io N - GMC 1982 Light Duty Truck Service Manual

4 B 1 -1 0 REAR AXLE
Fig. 4B1 -23--Measuring Gage Plate Thickness
Fig. 4Bl-24--lnstalling Differential Shim
Fig. 4Bl-25--Checking Ring Gear Backlash
Fig. 4Bl-26--Checking Ring Gear Runout

DRIVE P IN IO N

Removal
1. Remove differential as previously outlined.
2. Check torque required to ro tate drive pinion, as
described under "D rive Pinion - Installation and
A djustm en t". If there is no preload reading, check for
looseness of pinion assembly by shaking (push-pull) the
companion flange. Looseness indicates the need for
bearing replacement.
3. Install Holder J-8614-11 on flange by using two bolts
with flat washers, as shown in figure 4B1-28. 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. Remove
Fig. 4Bl-27--Loosening Adjusting Nut
flange by turning
J— 24429