GMC 1989 Light Duty Truck Repair Manual page 110

3B2-8 MANUAL STEERING GEAR
3. REMOVE AND INSTALL WORMSHAFT
AND BALL NUT
REMOVE
1. Loosen lock nut. Use punch
against edge of slot.
2. Remove parts as shown.
NOTICE: Use care that the ball nut does not run down to
either end of the worm. Damage may be done to the ends of
the ball guides if the ball nut is allowed to rotate until
stopped at the end of the worm.
WORM BEARING
ADJUSTER LOCKNUT
BRASS
DRIFT
Remove bearing cup
from housing only
if necessary.
Remove Cup
INSTALL
1. Install parts as shown.
J-35365
Install Cup
Figure 7 — M odel 535 — C hart B
4. DISASSEMBLE AND ASSEMBLE WORM
BEARING ADJUSTER
DISASSEMBLE
Pry lower bearing retainer
out w ith screwdriver.
Remove cup using
J 29369-1 puller and
slide hammer.
WORM BEARING
ADJUSTER
5. DISASSEMBLE AND ASSEMBLE
W ORMSHAFT AND BALL NUT
DISASSEMBLE
1. Disassemble parts as
shown.
2. Clean and inspect all
2. Refer to figure 3
parts for excessive
wear.
BALLS
'O F & '
ASSEMBLE
Press cup into adjust
using Tool A
Install parts as shown.
ASSEMBLE
1. Assemble parts as
shown.
(fig. A) for number
of balls used.
Viewed From
Splined End of
Wormshaft
F-05904