Chevrolet 10 Series 1968, Service Manual

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REAR SUSPENSION AND DRIVE LINE 4-31
NOTE: The bearing cup-to-retainer ring seat­
ing procedure is essential to assure that an ac­
curate wheel bearing adjustment will be obtained,
and that the adjustment will not loosen during
vehicle operation.
Drum Demountable-Type (Fig. 57)
Replacement
The demountable-type drum may be separated from the
hub and removed from the vehicle without disturbing the
axle shaft and hub. The drum is held to the hub by coun­
tersunk, slotted screws, which are easily removed with a
screw driver.
Drum-Nondemountable-Type (Fig. 56)
Replacement
Construction, of the nondemountable-type hub and drum
assembly, is such that replacement cannot be accom­
plished with the hub assembly installed on the vehicle.
1. Separate the drum and hub by removing the drum-to-
hub retaining bolts, hub stud nuts, or by pressing out
the wheel studs, as applicable.
2. Position brake drum to hub assembly, making certain
that all drain holes are in alignment.
3. Apply a light, even coating of sealing compound to the
hub oil deflector contact surface, and position de­
flector to drum.
Fig . 64—Removing Hub O uter Bearing
(11,000, 13,500 and 15,000 Lb. A xle s)
Fig . 65—Removing Hub Outer Bearing
(15,000 and 17,000 Lb. A xle s)
4. Install drum-to-hub retaining bolts, hub stud nuts, or
press wheel studs into drum, as applicable.
Wheel Bolt
Replacement
Wheel bolts are serrated and may also be swaged in
place; however, replacement procedure remains the same
for both types of installation.
Press bolts out of hub flange (as illustrated in Figure
Fig . 66—In stalling Hub O uter Bearing (T y p ica l)
CHEVROLET CHASSIS SERVICE MANUAL