Jeep Wrangler 1997 Manual - page 944
AX15 MANUAL TRANSMISSION
INDEX
page
page
GENERAL INFORMATION
AX15 MANUAL TRANSMISSION . . . . . . . . . . . . . 38
RECOMMENDED LUBRICANT . . . . . . . . . . . . . . 38
TRANSMISSION ASSEMBLY INFORMATION . . . 38
TRANSMISSION GEAR RATIOS . . . . . . . . . . . . . 38
TRANSMISSION IDENTIFICATION . . . . . . . . . . . 38
DIAGNOSIS AND TESTING
HARD SHIFTING . . . . . . . . . . . . . . . . . . . . . . . . 39
LOW LUBRICANT LEVEL . . . . . . . . . . . . . . . . . . 38
TRANSMISSION NOISE . . . . . . . . . . . . . . . . . . . 40
REMOVAL AND INSTALLATION
ADAPTER HOUSING SEAL . . . . . . . . . . . . . . . . 44
EXTENSION HOUSING SEAL . . . . . . . . . . . . . . . 44
FRONT BEARING RETAINER SEAL . . . . . . . . . . 43
TRANSMISSION . . . . . . . . . . . . . . . . . . . . . . . . . 40
DISASSEMBLY AND ASSEMBLY
ADAPTER/EXTENSION HOUSING AND
FRONT BEARING RETAINER . . . . . . . . . . . . . 45
COUNTERSHAFT . . . . . . . . . . . . . . . . . . . . . . . . 65
INPUT SHAFT . . . . . . . . . . . . . . . . . . . . . . . . . . 65
OUTPUT SHAFT . . . . . . . . . . . . . . . . . . . . . . . . 66
SHIFT MECHANISM AND GEARTRAIN . . . . . . . . 53
CLEANING AND INSPECTION
AX15 MANUAL TRANSMISSION
COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . 71
SPECIFICATIONS
TORQUE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
SPECIAL TOOLS
AX15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
GENERAL INFORMATION
AX15 MANUAL TRANSMISSION
The AX15 is a 5–speed, synchromesh, manual
transmission. Fifth gear is an overdrive range with a
ratio of 0.79:1. An adapter housing is used to attach
the transmission to the transfer case on 4–wheel
drive models. A standard extension housing is used
on 2–wheel drive models. The shift mechanism is
integral and mounted in the shift tower portion of
the adapter housing (Fig. 1).
TRANSMISSION IDENTIFICATION
The AX15 identification code numbers are on the
bottom surface of the intermediate plate (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.
TRANSMISSION GEAR RATIOS
Gear ratios for the AX15 manual transmission are
as follows:
•
First gear: 3.83:1
•
Second gear: 2.33:1
•
Third gear: 1.44:1
•
Fourth gear: 1.00:1
•
Fifth gear: 0.79:1
•
Reverse: 4.22:1
RECOMMENDED LUBRICANT
Recommended lubricant for AX15 transmissions is
Mopar
t
75W–90, API Grade GL–3 gear lubricant, or
equivalent.
Correct lubricant level is from the bottom edge, to
no more than 6 mm (1/4 in.) below the bottom edge of
the fill plug hole.
The fill plug is located on the driver’s side of the
transmission case (Fig. 3). The drain plug is located
on the passenger side of the transmission case near
the bottom (Fig. 4).
Approximate dry fill lubricant capacity is:
•
3.10 liters (3.27 qts.) for 4–wheel drive applica-
tions.
•
3.15 liters (3.32 qts.) for 2–wheel drive applica-
tions.
TRANSMISSION ASSEMBLY INFORMATION
Lubricate
the
transmission
components
with
Mopar
t
75W–90, GL 3 gear lubricant during assem-
bly. Use petroleum jelly to lubricate seal lips and/or
hold parts in place during installation.
Refer to (Fig. 5) during assembly for AX15 gear
assembly identification.
DIAGNOSIS AND TESTING
LOW LUBRICANT LEVEL
A low transmission lubricant level is generally the
result of a leak, inadequate lubricant fill, or an incor-
rect lubricant level check.
21 - 38
TRANSMISSION AND TRANSFER CASE
TJ