Chevrolet 1977 light duty truck Service Manual page 347

in front yoke (28 total). Retain bearings with a heavy
grease. Assemble seals to bearing cups.
2. Place front trunnion in drive shaft. Place center
yoke on front trunnion. Install one bearing cup and seal
assembly in front yoke. Drive in to a depth that the snap
ring can be installed. Install snap ring. Install rem aining
cup and seal in front yoke. Install snap ring.
3. Install fro nt trunnion bearing cups in center
yoke in same m anner.
4. W ith front trunnion completely installed, install
seal on prop shaft (large face first). G ently slip rear yoke
half on prop shaft using care not to upset rollers. Insert
re a r tru nnion in center yoke. Install rear yoke h alf
bearing caps on re a r trunnion. Install one rear trunnion
b e a rin g cap in center yoke and press into yoke until snap
ring can be installed. Install rem aining cap and snap
ring.
5. G rease universal as outlined in Section 0 at all
three (3) fittings (2 conventional type an d one in rear
yoke half) tha t requires a needle nose grease gun
adapter.
6. Install propeller shaft with constant velocity
jo in t next to tr a n sfe r
specifications. The lubrication fitting at this location is
shown in figure 4A-23.
DOUBLE C A R DAN TYPE-CV J O IN T
Inspection
A n inspection kit including two bearing caps and
two sn a p rings is available to allow the removal of the
two tru nn io n caps shown at location
M ark the flange yoke and coupling yoke for reassembly
in the same position, as shown in figure 4A-25.
N O T E: To service the trunnion caps, use the
a pp ro priate procedures given in the beginning of
this Section.
W h e n both bearing cups are free, disengage the
flange yoke and trunnion from the centering ball. Note
case. T o rq ue U-bolts
1, in figure 4A-24.
Fig. 4A-24 -Bearing Cap Removal Sequence
that the ball socket is part o f the flange yoke assembly,
to
while the centering ball is pressed onto a stud an d is p art
o f the ball stud yoke. See figure 4A-26. Pry the seal from
the ball socket and remove washers, spring and the three
ball seats as illustrated in figure 4A-27.
1. Clean and inspect ball seat insert bushing for
wear. If bushing is worn, replace flange yoke and cross
assembly.
2. Clean and inspect seal and ball seats along with
spring and washers. If any parts show indication o f
excessive wear or are broken, replace the entire set with
a service kit.
NOTE: W henever the seal is removed to inspect
ball seat parts, it should be discarded and replaced
with a new seal.
3. Remove all plastic from groove o f coupling
yoke.
BALL SUPPORT
A L IG N M E N T P U N C H M A R K S
TUBE YOKE