GMC 1982 Light Duty Truck Service Manual page 372

3 C -3 0 FRONT SUSPENSION
Fig. 3 C -6 K --R e m o v in g S p in d le a n d Thrust W a s h e r
b r i d g e ( I t e m # 1 1 ) t o p r e v e n t it f r o m j u m p i n g o u t o f
p o s i t i o n d u r i n g h a n d l i n g p r i o r t o t h e h u b b e a r i n g
a s s e m b l e d t o t h e v e h i c l e . T h i s " O " r i n g m a y b e l e f t o n
b u t is n o t r e q u i r e d .
25 . T h e h u b s l e e v e a n d a t t a c h e d p a r t s s h o u l d t u r n f r e e l y
a f t e r t h e u n i t h a s b e e n c o m p l e t e l y a s s e m b l e d .
26. T h e five c o v e r s c r e w s m u s t b e l o o s e n e d t o a s s e m b l e t h e
h u b t o t h e v e h i c l e . T o r q u e t h e s e s c r e w s a f t e r h u b is
i n s t a l l e d t o 4 . 5 - 5 . 6 N - m ( 4 0 - 5 0 i n - l b s . ) .
A s s e m b le N e w H u b to W h e e l
27 . A d r a g s l e e v e r e t a i n e r w a s h e r ( # 3 0 ) is s u p p l i e d w i t h
e a c h n e w a s s e m b l y . A s s e m b l e t h i s w a s h e r b e t w e e n t h e
w h e e l b e a r i n g a d j u s t m e n t n u t a n d t h e l o c k n u t . A d j u s t
t h e i n n e r n u t t o g i v e p r o p e r b e a r i n g a d j u s t m e n t a s
f ol l ows.
28 . U s e J - 6 8 9 3 t o t o r q u e a d j u s t i n g n u t ( # 3 1 ) t o 6 0 N - m
( 5 0 ft. l b s . ) , t o s e a t t h e b e a r i n g s ; t h e n , b a c k o f f t h e n u t
a n d t o r q u e t o 4 7 N - m ( 3 5 ft. l bs. ) w h i l e t h e h u b is b e i n g
r o t a t e d . F i n a l l y , b a c k t h e a d j u s t i n g n u t o f f a m a x i m u m
o f 3 / 8 t u r n . A s s e m b l e t h e d r a g s l e e v e r e t a i n e r w a s h e r
( I t e m # 3 0 ) o v e r t h e a x l e s h a f t a g a i n s t t h e b e a r i n g
a d j u s t m e n t n u t . T h e t a n g o n t h e i n s i d e d i a m e t e r o f t h i s
w a s h e r is a s s e m b l e d in t h e k e y w a y o f t h e a x l e s h a f t .
T h e p i n o n t h e a d j u s t i n g n u t M U S T p a s s t h r o u g h o n e
o f t h e h o l e s in t h e w a s h e r . A s s e m b l e a n d t i g h t e n t h e
o u t e r l o c k n u t t o 2 1 7 - 3 1 0 N - m ( 1 6 0 - 2 0 5 l b - f t ) .
29 . A l i g n t h e c u t - o u t s in t h e d r a g s l e e v e w i t h t a b s o n t h e
d r a g s l e e v e w a s h e r a s t h e s p l i n e s o f t h e o u t e r c l u t c h
h o u s i n g a r e a s s e m b l e d i n t o s p l i n e s o f t h e h u b o f t h e
w h e e l . L o o s e n t h e c o v e r s c r e w s t h r e e o r f o u r t u r n s a n d
p u s h in o n t h e s e s c r e w s , t o a l l o w t h e r e t a i n i n g r i n g t o
e x p a n d i n t o g r o o v e i n h u b o f w h e e l a s t h e s e a l b r i d g e is
f o r c e d f r o m p o s i t i o n o v e r t h e r e t a i n i n g r i n g a s t h e t a n g
o f s e a l b r i d g e c o n t a c t s w h e e l h u b . T o r q u e t h e c o v e r
s c r e w s to 4 . 5 - 5 . 6 N - m ( 4 0 - 5 0 lb. i n.)
A s s e m b le a R e b u ilt H u b to W h e e l
30 . S t e p s 1 - 1 7 i n t h e a s s e m b l e p r o c e d u r e a r e u s u a l l y
c o m p l e t e d w h e n e v e r
a s s e m b l e d t o t h e w h e e l .
t h e h u b is r e b u i l t a n d
31. Hold the two tangs of the retaining ring in the clamped
condition as the assembled components are assembled
to the hub of the wheel. See step 29 for installation of
drag sleeve washer.
32. Assemble the retainer (Item # 11) in the cut-out of the
outer clutch housing. For K10 and K20, assemble the
sealing ring over the outer clutch housing.
33. Assemble the bearing and retainer assembly into the
hub sleeve.
34. Assemble the bearing race spring to the cover.
35. Assemble the cover and cover bolts. Be sure th a t
O-rings are in position under the bolts. Tighten cover
screws to 4.5-5.6 N-m (40-50 lb. in.).
HUB-AND-DISC
Removal
1. Remove automatic locking hub as described earlier.
2. Remove the wheel bearing outer lock nut, retaining
washer, and wheel bearing inner adjusting nut using
Tool J-6893 and Adapter J-23446 or Tool J-6893-01.
3. Remove the hub-and-disc assembly and the outer wheel
bearing.
a. Remove the oil seal and inner bearing cone from the
hub using a brass drift and tapping with a hammer.
Discard the oil seal.
b. Remove the inner and outer bearing cups using a
brass drift and hammer.
c. Clean, inspect and lubricate all parts as required.
Installation of Hub-and-Disc
NOTICE: All parts should be lubricated for normal
operation during assembly with an ample amount of
high speed grease. Lubrication M U S T be applied to
prevent deterioration before the unit is placed in
service.
1. Assemble the outer wheel bearing cup into the wheel
hub using Installer J-6368 and Driver Handle J-8092.
2. Assemble the inner wheel bearing cup into the wheel
hub using Installer J-23448 and Driver Handle J-8092.
3. Pack the wheel bearing cone with a high melting point
type wheel bearing grease and insert the cone into the
cup.
4. After lubricating the wheel bearings, install the hub-
and-disc and the bearings to the spindle.
5. Adjust wheel bearings as listed in "M aintenance and
A d ju stm e n ts".
SPINDLE
Removal
1. Remove the hub-and-disc assembly as outlined earlier.
2. Remove the spindle retaining bolts.
3. Remove the spindle and thrust washer by tapping the
end of the spindle lightly with a soft ham mer to break it
loose from the knuckle as shown in Figure 3C-6K.
Replace the th ru st washer if excessive wear has
t h e n
occurred.