The AX-5 is a light duty five speed transmission. It
looks similar to the AX-15, but smaller. It is manufactured by
Aisin in Japan. The input shaft is 1" 14 spline and the output
shaft can be 21 spline or 23 spline.
Usage
The AX-5 and the Peugeot BA 10/5 were used in all Wranglers from
1987-1989. After mid 1989, the AX-5 has only been used in 4
cylinder Wranglers (YJs and TJs). Its usage is similar in Cherokees
(XJ) and Comanches (MJ).
The AX-5 from the front with bell
housing and clutch slave cylinder installed. Friendly neighbor not
included.
A driver's side shot of a BA 10/5 for
comparison. Notice how the
BA 10/5 doesn't have the regular ribbing on the driver's side.
The passenger side of the BA 10/5 does have regular ribbing. The
main case of the BA 10/5 is made of two pieces bolted together,
where as the AX-5 main case is one solid piece of cast
aluminum.
Transmission
1st
2nd
3rd
4th
5th
Rev
AX-5
3.93
2.33
1.45
1.00
0.85
4.74
Contributors
Photos courtesy David Moulton.
Comments and questions from our Readers
mike / brandon, ZZ, CANADA
Posted Jan 05 2009 07:37PM
can the BA10/5 be swapped in for the AX-5 in a 4 cylinder jeep yj? would you be able to do this just by changing the bell housing?
ryan1991yj / west valley, UT, UNITED STATES
Posted Feb 09 2009 11:28PM
what is the sensor mounted on the front of the AX-5 trans?
Chiri / Heredia, ZZ, COSTA RICA
Posted Mar 26 2009 11:37PM
UPSHIFT INDICATOR LIGHT On vehicles equipped with a manual transmission, ECU controls upshift indicator light. Indicator light is normally illuminated when ignition is turned on ithout engine running. Indicator light is turned off when engine is started. Indicator light will be illuminated during engine operation in response to engine load and speed. If transmission is not shifted, ECU will turn light off after 3 to 5 seconds. A switch located on transmission prevents indicator light from being illuminated when transmission is shifted to highest gear. Image from XJ: http://www.4x4extremo.com/socios/elopez/Jeep_Warning_Light.jpg
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