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GEARBOXES
MODEL 231 TRANSFER CASE
Shift Mechanism
Transfer case operating ranges are selected
with a floor mounted shift lever. The lever is
connected to the transfer case range lever by
an adjustable linkage rod. A straight line shift
pattern is used. Range positions are marked on
the the shift lever handle.
Transfer Case identification
A circular ID tag (A) is attached to the rear case
of each Model 231 transfer case. The ID tag
provides the transfer case model number,
assembly number, serial number and low
range ratio.
The transfer case serial number also repre-
sents the date of build. For example, a serial
number of 8-7-87 would represent August 7,
1987.
iENERAL SPECIFICATIONS
Transfer Case Type:
Part-time, dual range with low range reduction. Four-wheel
drive range is undifferentiated.
Torque Transfer Mode:
Output shaft and sprocket driven by interconnecting drive
chain.
Operating Ranges:
2-high, 4-high, 4-low and Neutral. Low range reduction ratio
is 2.72:1.
Case Configuration:
Two-piece aluminum with removable extension and rear
retainer housings.
Lubricant Capacity:
1.54 liters (3.25 pints)
Required Lubricant:
M E R C O N ®
automatic transmission fluid.
Transfer Case Fill Level:
To bottom edge of fill plug hole.
2591
23
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