Jeep 1996 Grand Cherokee Service Manual - page 53
MEASUREMENT
This measurement is taken with the shaft installed
and the vehicle at proper ride height.
(1) Place vehicle on floor or drive-on hoist with full
weight of vehicle on suspension.
(2) Take a measure from the CV-joint cup to the
end of the CV-joint boot (Fig. 15).
(3) Adjust by loosening the lock nut and moving
the one end of the shaft in or out of the other end.
(4) When the shaft is adjusted to the correct
length (Fig. 15) 142.7 mm (5.61 in.) tighten the lock-
nut (Fig. 16) to 115 N·m (85 ft. lbs.).
CAUTION: A propeller shaft that has been in use
for a long period of time cannot be adjusted. If the
length of the propeller is incorrect and causing
vibration, replace the propeller shaft.
REAR PROPELLER SHAFT
REMOVAL
(1) Shift the transmission and transfer case (if
applicable) to their Neutral positions. Raise the vehi-
cle.
(2) Scribe alignment marks at the pinion shaft and
at each end of the propeller shaft. These marks will
be used for installation reference.
(3) Remove the U–joint strap bolts at the pinion
shaft yoke.
(4) Slide the slip yoke off of the transmission/
transfer case output shaft and remove the propeller
shaft (Fig. 17).
INSTALLATION
(1) Slide the slip yoke on the transmission/transfer
case output shaft. Align the installation reference
marks at the axle yoke and install the propeller shaft
(Fig. 17).
Replacement U–joint straps and bolts must be
installed.
(2) Tighten the U–joint strap/clamp bolts at the
axle yoke to 19 N·m (14 ft. lbs.) torque.
(3) Lower the vehicle.
DISASSEMBLY AND ASSEMBLY
SINGLE CARDAN
REMOVAL
Single cardan universal joints are not serviceable.
If worn or leaking, they must be replaced as a unit.
(1) Remove the propeller shaft. Refer to Propeller
Shaft Replacement in this Group.
(2) Paint or score alignment marks on the
yokes and propeller shaft for installation refer-
ence.
Fig. 15 Measurement
Fig. 16 Lock–nut
Fig. 17 Rear Propeller Shaft
3 - 8
DIFFERENTIAL AND DRIVELINE
ZJ
REMOVAL AND INSTALLATION (Continued)