Vibration; Unbalance; Reference Marks On Yokes; Double Cardan (Cv) Universal Joint - Jeep Wrangler 1997 Manual

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GENERAL INFORMATION
REFERENCE MARKS
1 . LINK YOKE
2. SOCKET SP
3. SOCKET BA
4. THRUST W
5. NEEDLE B
Fig. 4 Reference Marks o
RING
LL RETAINER
SHER
RINGS
n Yokes
J9316-2
CAUTION : It is very important to protect the
machined, external surface of the slip yoke from
damage after propeller shaft removal. If damaged,
the transmission extension seal could be damaged
and cause a leak.
DIFFERENTIAL AND DRIVELINE 3-3
6. SEAL 11 . FRONT SPIDER
7. BEARING CAP
12 . NEEDLE BEARINGS
8. REAR SPIDER 13 . THRUST WASHER
9. SOCKET YOKE
14 . DRIVE SHAFT YOKE
10. SOCKET BALL 15 . RETAINING CLIP
3 Double Cardan (CV) Universal Joint
DIAGNOSIS AND TESTING
J9216-21
VIBRATION
Tires that are out-of-round or wheels that are
unbalanced will cause a low frequency vibration .
Refer to Group 22, Wheels and Tires for additional
information .
Brake drums that are unbalanced will cause a
harsh, low frequency vibration . Refer to Group 5,
Brakes for additional information.
Driveline vibration can also result from loose or
damaged engine mounts . Refer to Group 21, Trans-
missions for additional information.
Propeller shaft vibration will increase as the vehi-
cle speed is increased . A vibration that occurs within
a specific speed range is not caused by propeller
shaft unbalance . Defective universal joints or an
incorrect propeller shaft angle are usually the cause.
UNBALANCE
If propeller shaft unbalance is suspected, it can be
verified with the following procedure :
Removing and re-indexing the propeller shaft
180° may eliminate some vibrations.
" Clean all the foreign material from the propeller
shaft and the universal joints .