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GENERAL INFORMATION
AX15 MANUAL TRANSMISSION . . . . . . . . . . . . . 37
RECOMMENDED LUBRICANT . . . . . . . . . . . . . . 37
TRANSMISSION ASSEMBLY INFORMATION . . . 38
TRANSMISSION GEAR RATIOS . . . . . . . . . . . . . 37
TRANSMISSION IDENTIFICATION . . . . . . . . . . . 37
DIAGNOSIS AND TESTING
HARD SHIFTING . . . . . . . . . . . . . . . . . . . . . . . . 39
LOW LUBRICANT LEVEL . . . . . . . . . . . . . . . . . . 38
TRANSMISSION NOISE . . . . . . . . . . . . . . . . . . . 40
REMOVAL AND INSTALLATION
ADAPTER HOUSING SEAL . . . . . . . . . . . . . . . . 43
EXTENSION HOUSING SEAL . . . . . . . . . . . . . . . 43
FRONT BEARING RETAINER SEAL . . . . . . . . . . 42
TRANSMISSION . . . . . . . . . . . . . . . . . . . . . . . . . 40
GEN ERAL I N FORM AT I ON
AX15 MANUAL TRANSMISSION
Th e AX15 is a 5–speed, syn ch r om esh , m a n u a l
t r a n sm ission . F ift h gea r is a n over dr ive r a n ge wit h a
r a t io of 0.79:1. 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 m odels. A st a n da r d ext en sion h ou sin g is u sed
on 2–wh eel dr ive m odels. Th e sh ift m ech a n ism is
in t egr a l 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 h ou sin g (F ig. 1).
TRANSMISSION IDENTIFICA TION
Th e AX15 iden t ifica t ion code n u m ber s a r e on t h e
bot t om su r fa ce of t h e in t er m edia t e pla t e (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-
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.
AX 1 5 M AN U AL T RAN SM I SSI ON
TRANSMISSION AND TRANSFER CASE
INDEX
page
DISASSEMBLY AND ASSEMBLY
ADAPTER/EXTENSION HOUSING AND FRONT
BEARING RETAINER . . . . . . . . . . . . . . . . . . . 44
COUNTERSHAFT . . . . . . . . . . . . . . . . . . . . . . . . 63
INPUT SHAFT . . . . . . . . . . . . . . . . . . . . . . . . . . 64
OUTPUT SHAFT . . . . . . . . . . . . . . . . . . . . . . . . 64
SHIFT MECHANISM AND GEARTRAIN . . . . . . . . 51
CLEANING AND INSPECTION
AX15 MANUAL TRANSMISSION
COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . 69
SPECIFICATIONS
TORQUE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
SPECIAL TOOLS
AX15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
TRANSMISSION GEAR RA TIOS
Gea r r a t ios for t h e AX15 m a n u a l t r a n sm ission a r e
a s follows:
• F ir st gea r : 3.83:1
• Secon d gea r : 2.33:1
• Th ir d gea r : 1.44:1
• F ou r t h gea r : 1.00:1
• F ift h gea r : 0.79:1
• Rever se: 4.22:1
RECOMMENDED LUBRICANT
Recom m en ded lu br ica n t for AX15 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 .
Cor r ect lu br ica n t level is fr om t h e bot t om edge, t o
n o m or e t h a n 6 m m (1/4 in .) below t h e bot t om edge of
t h e fill plu g h ole.
Th e fill plu g is loca t ed on t h e dr iver 's side of t h e
t r a n sm ission ca se (F ig. 3). Th e dr a in plu g is loca t ed
on t h e pa ssen ger side of t h e t r a n sm ission ca se n ea r
t h e bot t om (F ig. 4).
21 - 37
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