Grand Cherokee 4WD V8-4.7L VIN N (2000)
6.
Remove both brake rotors.
NOTE:
THE WHEEL/TIRE ASSEMBLY, BRAKE CALIPER, AND BRAKE ROTOR MUST BE REMOVED FROM BOTH SIDES OF THE FRONT
AXLE BEFORE THE ORIGINAL TOTAL TORQUE TO ROTATE (TTR) MEASUREMENT IS TAKEN IN STEP 15.
7.
Remove the bolts holding the front CV joint of the front propeller shaft front to the front axle pinion companion flange.
8.
Remove the bolts holding the rear CV joint of the front propeller shaft to the transfer case companion flange.
9.
Remove the front propeller shaft.
10.
Remove the nut used to secure the transfer case front companion flange to the transfer case front output shaft. Save the nut for assembly.
11.
Remove the transfer case front companion flange from the transfer case front output shaft.
12.
Install the new transfer case front yoke (pn 05019514AA) and its attaching nut onto the transfer case front output shaft.
NOTE:
NEVER USE AN IMPACT WRENCH TO TIGHTEN THE TRANSFER CASE NUT.
13.
Tighten the transfer case yoke nut to 122 - 176 Nm (90 - 130 ft. lbs.).
14.
At the front axle, rotate the pinion gear a minimum of 10 turns.
15.
Using a dial inch pound torque wrench attached to the front axle pinion nut, measure the Total Torque to Rotate (TTR) of the front axle. This
specific TTR will be the measurement of the torque that is required to rotate the pinion and differential gears (with axle shafts in place). Record
the TTR measurement for later use in steps 20, 21, and 22.
NOTE:
A MEASUREMENT OF THE FRONT AXLE TOTAL TORQUE TO ROTATE MUST BE TAKEN BEFORE THE ORIGINAL PINION NUT
AND PINION YOKE IS REMOVED. THE ORIGINAL TTR MEASUREMENT MUST BE KNOWN TO PREVENT POSSIBLE PINION
BEARING FAILURE DURING ASSEMBLY OF THE NEW PINION YOKE TO THE FRONT AXLE PINION.
16.
Remove the front axle pinion nut and companion flange.
17.
Install the new front axle pinion yoke (pn 05019624AA) and attaching pinion nut (pn 05017755AA).
18.
Tighten the pinion nut until there is zero bearing end-play.
NOTE:
NEVER USE AN IMPACT WRENCH TO TIGHTEN AN AXLE PINION NUT.
19.
Measure the current Total Torque to Rotate value with the same dial inch pound torque wrench used to obtain the original TTR measurement.
20.
Slowly tighten the pinion nut in 6.8 Nm (5 ft. lbs.) increments until the original TTR value is obtained.
NOTE:
MEASURE THE ROTATING TORQUE FREQUENTLY TO AVOID OVER CRUSHING THE COLLAPSIBLE SPACER.
21.
Increase the torque on the pinion nut in 6 - 8 Nm (5 ft. lbs.) increments until the TTR has increased by 0.22 - 0.56 Nm (2 - 5 in. lbs.) above the
original TTR value.
22.
Once the new TTR value (the original TTR + 2 to 5 in. lbs.) has been obtained, rotate the pinion gear a minimum of ten times. Verify that the
pinion rotates smoothly. Verify that the new TTR value has not changed.
23.
Note the paint mark on the transfer case yoke, front axle pinion yoke, and at each end of the propeller shaft. The paint marks must be aligned
(positioned next to each other) to minimize propeller shaft runout and out-of-balance.
24.
Install the front propeller shaft rear double cardan joint to the transfer case yoke. Make sure the paint marks are aligned with each other.
25.
Tighten the four bolts (pn 06034966) connecting the transfer case yoke to the double cardan joint to 27 Nm (20 ft. lbs.).
26.
Install the single cardan joint to the front axle pinion yoke. Make sure the paint marks are aligned with each other.
