Chevrolet 1977 light duty truck, Service Manual

Page: 368 / 861

7. Lower vehicle and remove from hoist.
Wheel Bolt—Replacement
1. Raise vehicle on hoist allowing axle to hang
freely.
2. Remove wheel and tire an d brake drum.
3. U sing Tool J-5504 or J-6627 press out stud as
shown in figure 4B-23.
4. Place new stud in axle flange hole. Slightly start
stud serrations in hole by firmly pressing back o f stud
with your han d .
5. Install a lug nut w ith flat side first (tapered face
outboard). T ighten on lug n u t draw ing stud into flange
until stud h ead is bottom ed on back side o f flange.
6. Rem ove lug nut.
7. Reinstall brake d r u m an d wheel an d tire.
8. Lower vehicle and remove from hoist.
P IN IO N FLANGE, D U S T DEFLECTOR
A N D / O R OIL SEAL
Removal
1. Raise vehicle on hoist.
2. D isconnect propeller shaft from axle.
3. Position propeller sh aft to one side and tie it to
f r a m e side rail.
4. M easure the torque required to rotate the
pinion, as shown in figure 4B-24. Record the torque for
later reference.
5. Scribe a line down pinion stem, pinion nut, and
flange to aid on reinstallation. M ake sure lines show the
r e l a tio n s h ip o f c o m p o n e n ts accurately. C o u n t the
n u m b e r o f exposed threads on pinion stem, and record
for la ter reference. See figure 4B-25.
6. Install Tool J -8 6 14-11 on pinion flange and
rem ove p in io n flange self-locking w asher faced n u t as
shown in figure 4B-26. (Position J-8 6 14-11 on flange so
th a t the four notches are toward flange.) Save scribed
n u t fo r reinstallation.
Fig. 4B-24--M easuring Pinion R otating Torque
7. T hread pilot end o f Tool J-8 6 14-3 into small
O.D. end o f J-8 6 14-2. T hen with J -8 6 14-11 installed as in
Step 6, insert J-8 6 14-2 into J -8 6 14-11 and turn it 45
degrees to locked position. Remove flange by turning
J-8614-3 while holding J-8 6 14-11 as shown in figure 4B-
27.
8. Pry old seal out o f bore, using a screw driver or
a h a m m e r and chisel.
Inspection
1. Inspect pinion flange for smooth oil seal surface,
w orn drive splines, d a m a g e d ears, an d for smoothness of
bearing contact surface. Replace if necessary.
2. If deflector requires replacement, remove by
tap p in g from flange, clean up stake points; install new
deflector, and stake deflector at three new equally spaced
positions.
NOTE: Staking operation must be p e rfo rm e d in
TO O L J -6 6 2 7
or J - 5 5 0 4