Jeep Transmissions: AX-5 - - Jeep at Off-Road.com
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Jeep Transmissions: AX-5
Publish date: Nov 1, 2005
By:  ORC STAFF
Source: Jeep at Off-Road.com
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).
AX-5 frontThe AX-5 from the front with bell housing and clutch slave cylinder installed. Friendly neighbor not included.
BA 10/5 sideA 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.
Transmission1st2nd3rd4th5thRev
AX-53.932.331.451.000.854.74

Contributors

Photos courtesy David Moulton.
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Comments and questions from our Readers
mike / brandon, ZZ, CANADA
 Posted 2009-01-05 19:37:59.0
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 2009-02-09 23:28:47.0
what is the sensor mounted on the front of the AX-5 trans?
Chiri / Heredia, ZZ, COSTA RICA
 Posted 2009-03-26 23:37:03.0
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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