Jeep cherokee 2000 Service Manual page 909

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TRANSMISSION AND TRANSFER CASE
AX5 MANUAL TRANSMISSION . . . . . . . . . . . . . . . 1
NV3550 MANUAL TRANSMISSION . . . . . . . . . . . 42
AUTOMATIC TRANSMISSION-30RH . . . . . . . . . 88
DESCRIPTION AND OPERATION
AX5 MANUAL TRANSMISSION . . . . . . . . . . . . . . . 1
LUBRICANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
DIAGNOSIS AND TESTING
LOW LUBRICANT LEVEL. . . . . . . . . . . . . . . . . . . . 3
HARD SHIFTING . . . . . . . . . . . . . . . . . . . . . . . . . . 3
TRANSMISSION NOISE . . . . . . . . . . . . . . . . . . . . . 3
REMOVAL AND INSTALLATION
TRANSMISSION . . . . . . . . . . . . . . . . . . . . . . . . . . 3
FRONT BEARING RETAINER SEAL . . . . . . . . . . . . 6
EXTENSION HOUSING SEAL . . . . . . . . . . . . . . . . 7
ADAPTER HOUSING SEAL . . . . . . . . . . . . . . . . . . 7
DISASSEMBLY AND ASSEMBLY
ADAPTER/EXTENSION HOUSING AND
FRONT BEARING RETAINER . . . . . . . . . . . . . . . 8
DESCRIPTION AND OPERATION
AX5 MANUAL TRANSMISSION
DESCRIPTION
The AX5 is a five speed manual transmission with
fifth gear being the overdrive range. An adapter hous-
ing is used to attach the transmission to the transfer
case on 4-wheel drive applications. A standard style
extension housing is used for the 2-wheel drive appli-
cations. The shift mechanism is integral to the trans-
mission assembly and mounted in the shift tower
portion of the adapter/extension housing (Fig. 1).
GEAR RATIOS
Gear ratios for the AX5 manual transmission are
as follows:
• First gear: 3.93:1
TABLE OF CONTENTS
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AX5 MANUAL TRANSMISSION
TABLE OF CONTENTS
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TRANSMISSION AND TRANSFER CASE
AW-4 AUTOMATIC TRANSMISSION . . . . . . . . . 217
NV231 TRANSFER CASE . . . . . . . . . . . . . . . . . . 346
NV242 TRANSFER CASE . . . . . . . . . . . . . . . . . . 375
SHIFT MECHANISM AND GEARTRAIN . . . . . . . . 17
COUNTERSHAFT. . . . . . . . . . . . . . . . . . . . . . . . . 30
INPUT SHAFT . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
OUTPUT SHAFT . . . . . . . . . . . . . . . . . . . . . . . . . 31
SEMI-SYNCHRONIZED REVERSE IDLER
GEAR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
CLEANING AND INSPECTION
AX5 MANUAL TRANSMISSION COMPONENTS . . 37
SPECIFICATIONS
TORQUE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
SPECIAL TOOLS
AX5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
• Second gear: 2.33:1
• Third gear: 1.45:1
• Fourth gear: 1.00:1
• Fifth gear: 0.85:1
• Reverse gear: 4.74:1
TRANSMISSION IDENTIFICATION
The AX5 identification code is on the bottom sur-
face of the transmission case near the fill plug (Fig.
2). The first number is year of manufacture. The sec-
ond and third numbers indicate month of manufac-
ture. The next series of numbers is the transmission
serial number.
OPERATION
The manual transmission receives power through
the clutch assembly from the engine. The clutch disc
is splined to the transmission input shaft and is
turned at engine speed at all times that the clutch is
21 - 1
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