Model 20 Transfer Case; Transfer Case Shift Sequence - Jeep 1979 CJ-5 Technical & Service Manual

2D-1
S E C T I O N I N D E X
Model 20 Transfer Case
21-1
Quadra-Trac Transfer Case 21=12
P i p
Tools 21-39
& m
¥ M j i i W ! i t
©mm
General
Identification
In-Vehicle Service
Oit-of-Vellile Service
Power Flow
Service Diagnosis
2D-1
21-1
21-3
2 1 - 1
21-1
21-3
Shift Control Case—Cherokee and Truck
S i f t Linkage—CJ Models
Specifications
Towing
Transfer Case Shift Sequence
Page
21-9
21-11
21-11
21-2
21-1
GENERAL
The Model 20 Transfer Case is a four position gearbox
providing two gear ratios in four wheel drive, one ratio
in two wheel drive, and a neutral position. Four wheel
drive low provides a reduction ratio of 2.03:1 for off-road
use and applications that require increased pulling
power. Four wheel drive high and two wheel drive high
both provide a 1:1 ratio in the transfer case. Neutral
position is used for stationary power takeoff appli-
cations such as winching. In neutral, power is not trans-
mitted to the wheels.
I l E I T i F i C l T i l l . -
An identification tag t h a t displays the vendor and
Jeep part numbers is attached to the intermediate shaft
lockplate bolt. This information is necessary to obtain
correct service replacement parts.
POWER FLOW
Power flow through the transfer case in each position
is shown in figures 2D-1 through 2D-4. The darkened
areas of the illustrations show what gears are engaged
in the various drive ranges.
TRANSFER CASE SHIFT SEQUENCE ,
Transfer case shifting is controlled by a floor mounted
lever located next to the transmission gearshift lever.
The lever is connected to the transfer case shift rods by a
linkage and must be moved only through the shift se-
quence indicated on the shift knob (fig. 2D-5).
Lubricant circulates between the transfer case and
transmission on all 3-speed manual transmissions.
FROM
TRANSMISSION
TO
FRONT
A X L E
J 4 2 8 '
Fig. 2 1 - 1
Neutral