Shift Linkage Adjustment; Transfer Case-Removal And Installation - Jeep cherokee 1989 Owner's Manual

1 General information
The transfer case is a device which passes the power from the engine
and transmisssion to the front and rear driveshafts.
Several transfer cases were used on these models: New process
2071231 (Command Trac) and 22812291242 (Selec-Trac). Command-
Trac is a part-time transfer case with three operating ranges: 2WD high,
4WD high (full-time 4WD) 4WD high lock (part-time 4WD) and 4WD
low lock (part-time 4WD).

2 Shift linkage adjustment

to illustrations and
2.2 2.4
Refer
1 Remove the shift lever boot or move the carpeting aside for access
to the lever.
2 Position the shift lever as far t o the rear as possible and insert a
118-inch thick shim between the shift lever and the shift gate (see
illustration).
Raise the vehicle and support it securely on jackstands.
3
4 Under the vehicle, loosen the shift linkage trunnion lock bolt and
make sure the shift rod fits freely in the trunnion and shift lever (see
illustration). Tighten the bolt securely.
5
Lower the vehicle, remove the shim and reinstall any components
which were removed.
-
3 Transfer case removal and installation
Removal
1 Disconnect the negative cable from the battery.
2 Raise the vehicle and support
Drain the transfer case lubricant (see Chapter 1).
3
4 Disconnect the speedometer cable, shift lever, vacuumlvent lines
and wire harness connectors from the transfer case.
5 Remove the driveshafts (see Chapter 8).
6 Remove the exhaust system components as necessary for
clearance (see Chapter 4).
2.2 Pull the shift lever (A) back and insert the shim
between the lever and the shift gate
The Motor Manual Guy
Chapter 7 Part C
it securely on jackstands.
Transfer case
7 Support the transmission with a jack or jackstand. The transmission
should remain supported at all times while the transfer case is out of
the vehicle.
8 Support the transfer case with a jack
made for this purpose. Safety chains will help steady the transfer case
on the jack.
9 Remove the rear transmission support-to-crossmember nuts and
bolts.
1 0 Remove the crossmember bolts. Raise the transfer case slightly
and remove the crossmember.
11 Remove the nuts securing the transmission to the transfer case.
Lower the transmission sufficienty to allow access to the upper nuts.
12 Make a final check that all wires and hoses have been disconnected
from the transfer case and then move the transfer case and jack toward
the rear of the vehicle until the transfer case is clear of the transmission.
Keep the transfer case level as this is done.
1 3 Once the input shaft is clear, lower the transfer case and remove
it from under the vehicle.
it into position behind the transmission and then carefully slide
ward, engaging the input shaft with the transmission output shaft. Do
not use excessive force to install the transfer case
does not slide into place, readjust the angle so it is level and/or turn
the input shaft so the splines engage properly with the transmission.
15 Install the transmission-to-transfer case nuts. Tighten the nuts to
the specified torque.
16 Install the crossmember and transmission support. Tighten all nuts
and bolts securely.
17 Remove the jacks supporting the transmission and the transfer
case.
18 Install the various items removed previously, referring to Chapter 8
for the installation of the driveshafts and Chapter 4 for information
regarding the exhaust system components.
19 Make a final check that all wires, hoses and the speedometer cable
have been connected and that the transmission has been filled with
lubricant to the proper level (see Chapter 1
2 0 Connect the negative battery cable. Road test the vehicle for proper
operation and check for leakage.
2.4 Loosen the lock bolt ( 0 ) on the trunnion (E) and adjust the
rod (F) so it fits freely in the trunnion and the shift lever
preferably a special jack
for-
it
if the input shaft
Lower the vehicle.