WHAT IS MY 86 TRANSMISSION?

[ruralandalone]

i have an 86 with the 2.5l four.   The tranny is a 4 speed manual.  Jeepforums indicate that it could be either an Aislin AX4 or a Borg Warner T4.  Since they use different fluids, and I want to change it, the difference may be important.  One uses 90 wt gear oil , and one uses Dextron II....

[Green Mesa XJ]

i have an 86 with the 2.5l four.   The tranny is a 4 speed manual.  Jeepforums indicate that it could be either an Aislin AX4 or a Borg Warner T4.  Since they use different fluids, and I want to change it, the difference may be important.  One uses 90 wt gear oil , and one uses Dextron II....

Should be Aisin for that year



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[ruralandalone]

After checking every manual I own, and on line, I managed to find a serial number on the bottom, so I think it is the AX4.  (it had ATF in it, though, which seems to be the wrong stuff)

[Jeep Driver]

The TC would have ATF......the trans would have.........well..........you could use 30W motor oil. 

[Pete M]

On 6/20/2019 at 10:53 AM, ruralandalone said:

i have an 86 with the 2.5l four.   The tranny is a 4 speed manual.  Jeepforums indicate that it could be either an Aislin AX4 or a Borg Warner T4.  Since they use different fluids, and I want to change it, the difference may be important.  One uses 90 wt gear oil , and one uses Dextron II....

 

a picture would help clear it up for sure.  

[Eagle]

AMC used the T4 and T5 as "alternate standard" transmissions in the 1984 and 1985 Cherokee because they were able to source enough AX-4 and AX-5 transmissions. By 1986 I think the supply line issues had been worked out. I don't think I've ever heard of the T4 and T5 being used in 1986.

[ruralandalone]

Thanks for all of the responses. IT is the AX4, due to the serial number placement.