Chevrolet LIGHT DUTY TRUCK (SERIES 10-35) Service Manual page 377

4 B -1 6 REAR AXLE
Fig. 4B-23--Pressing O ut W heel Stud
6 . Install Tool J-8614-11 on pinion flange and remove
pinion flange self-locking washer faced nut as shown in
figure 4B-26. (Position J-8614-11 on flange so that the four
notches are toward flange.)
reinstallation.
7. Thread pilot end of Tool J-8614-3 into small O.D.
end of J-8614-2. Then with J-8614-11 installed as in Step
6 , insert J-8614-2 into J-8614-11 and turn it 45 degrees to
locked position. Remove flange by turning J-8614-3 while
holding J-8614-11 as shown in figure 4B-27.
8 . Pry old seal out of bore, using a screw driver or a
hammer and chisel.
inspection
1. Inspect pinion flange for smooth oil seal surface,
worn drive splines, damaged ears, and for smoothness of
bearing contact surface. Replace if necessary.
2. If deflector requires replacement, remove by tapping
from flange, clean up stake points; install new deflector, and
stake deflector at three new equally spaced positions.
Staking operation must be performed in such a manner that
the seal operating surface is not damaged.
LIG H T T R U C K S ER V IC E MANUAL
Save scribed nut for
Fig. 4B-25--Scribe M arks
Installation
1. Lubricate cavity between the seal lips of the pinion
flange oil seal with a lithium-base extreme pressure
lubricant.
2. Position seal in bore and place gauge plate J-22804-1
over seal and against seal flange. The gauge plate assures
proper seating of seal in carrier bore.
3. Use J-21057, as shown in figure 4B-28, to press seal
into carrier bore until gauge plate is flush with the carrier
shoulder and seal flange. Turn gauge plate 180° from
installed position; seal must be square in carrier bore to seal
properly against pinion flange.
4. Pack the cavity between end of pinion splines and
pinion flange with a non-hardening sealer (such as Permatex
Type A or equivalent) prior to installing washer and nut on
pinion.
5. Using J-8614-11 as shown in figure 4B-29, install
flange onto pinion. Install washer and nut, and tighten nut
to original position. Refer to scribe marks and number of
exposed threads, recorded earlier.
Fig. 4B-26--Rem oving Nut from Drive Pinion