Jeep Cherokee 1999 Electronic Service Manual page 1324

X J
TRANSMISSION AND TRANSFER CASE
AUTOMA TIC TRANSMISSION—30RH . . . . . . . . 73
A W–4 AUTOMA TIC TRANSMISSION . . . . . . . . 163
AX15 MANUAL TRANSMISSION . . . . . . . . . . . . 37
GENERAL INFORMATION
AX5 MANUAL TRANSMISSION . . . . . . . . . . . . . . 1
GEAR RATIOS . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
RECOMMENDED LUBRICANT . . . . . . . . . . . . . . . 1
TRANSMISSION ASSEMBLY INFORMATION . . . . 2
TRANSMISSION IDENTIFICATION . . . . . . . . . . . . 1
DIAGNOSIS AND TESTING
HARD SHIFTING . . . . . . . . . . . . . . . . . . . . . . . . . 3
LOW LUBRICANT LEVEL . . . . . . . . . . . . . . . . . . . 3
TRANSMISSION NOISE . . . . . . . . . . . . . . . . . . . . 4
REMOVAL AND INSTALLATION
ADAPTER HOUSING SEAL . . . . . . . . . . . . . . . . . 7
EXTENSION HOUSING SEAL . . . . . . . . . . . . . . . 7
FRONT BEARING RETAINER SEAL . . . . . . . . . . . 6
TRANSMISSION . . . . . . . . . . . . . . . . . . . . . . . . . . 4
GEN ERAL I N FORM AT I ON
AX5 MANUAL TRANSMISSION
Th e AX5 is a five speed m a n u a l t r a n sm ission wit h
fift h gea r bein g t h e over dr ive r a n ge. An a da pt er
h ou sin g is u sed t o a t t a ch t h e t r a n sm ission t o t h e
t r a n sfer ca se on 4-wh eel dr ive a pplica t ion s. A st a n -
da r d st yle ext en sion h ou sin g is u sed for t h e 2-wh eel
dr ive a pplica t ion s. Th e sh ift m ech a n ism is in t egr a l t o
t h e t r a n sm ission a ssem bly a n d m ou n t ed in t h e sh ift
t ower por t ion of t h e a da pt er /ext en sion h ou sin g (F ig.
1).
TRANSMISSION IDENTIFICA TION
Th e AX5 iden t ifica t ion code is on t h e bot t om su r-
fa ce of t h e t r a n sm ission ca se n ea r t h e fill plu g (F ig.
2). Th e fir st n u m ber is yea r of m a n u fa ct u r e. Th e sec-
on d a n d t h ir d n u m ber s in dica t e m on t h of m a n u fa c-
CON T EN T S
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AX 5 M AN U AL T RAN SM I SSI ON
INDEX
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TRANSMISSION AND TRANSFER CASE
AX5 MANUAL TRANSMISSION . . . . . . . . . . . . . . 1
NV231 TRANSFER CASE . . . . . . . . . . . . . . . . . 280
NV242 TRANSFER CASE . . . . . . . . . . . . . . . . . 306
DISASSEMBLY AND ASSEMBLY
ADAPTER/EXTENSION HOUSING AND FRONT
BEARING RETAINER . . . . . . . . . . . . . . . . . . . . 8
COUNTERSHAFT . . . . . . . . . . . . . . . . . . . . . . . . 26
INPUT SHAFT . . . . . . . . . . . . . . . . . . . . . . . . . . 26
OUTPUT SHAFT . . . . . . . . . . . . . . . . . . . . . . . . 27
SEMI-SYNCHRONIZED REVERSE
IDLER GEAR . . . . . . . . . . . . . . . . . . . . . . . . . . 32
SHIFT MECHANISM AND GEARTRAIN . . . . . . . . 15
CLEANING AND INSPECTION
AX5 MANUAL TRANSMISSION COMPONENTS . . . 32
SPECIFICATIONS
TORQUE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
SPECIAL TOOLS
AX5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
t u r e. Th e n ext ser ies of n u m ber s is t h e t r a n sm ission
ser ia l n u m ber.
GEAR RA TIOS
Gea r r a t ios for t h e AX5 m a n u a l t r a n sm ission a r e
a s follows:
• F ir st gea r : 3.93:1
• Secon d gea r : 2.33:1
• Th ir d gea r : 1.45:1
• F ou r t h gea r : 1.00:1
• F ift h gea r : 0.85:1
• Rever se gea r : 4.74:1
RECOMMENDED LUBRICANT
Recom m en ded lu br ica n t for AX5 t r a n sm ission s is
Mopa r 75W–90, AP I Gr a de GL–3 gea r lu br ica n t , or
equ iva len t .
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