Comanche Tranny

[texasjack]

What years automatic 2 wheel drive 6 cylinder will work in a 1990 Commanche?

 

HELP! 

 

Thank you

 

Texasjack

[omega_rugal]

AW4....

[Green Mesa XJ]

Mj & XJ aw4 automatic transmission 87-90 are a direct fit , but just about any 2wd AW4 transmission might work.

Internally they are almost identical with differences through various years in plugs and maybe driveshafts.

 

 

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[ScottJeep]

http://www.naxja.org/forum/showthread.php?t=1053970

[HOrnbrod]

1990 was the first year for the 23 spline output AW4, so a 90-97 2WD AW4 would be the easiest replacements. There are some wiring pinout differences to the TCU throughout the years, but with the wiring diagrams these are easy get right.

[texasjack]

Thank Y'all for the help.

I discovered the problem was a frayed kickdown cable.

 

Texasjack

[cruiser54]

1990 was the first year for the 23 spline output AW4, so a 90-97 2WD AW4 would be the easiest replacements. There are some wiring pinout differences to the TCU throughout the years, but with the wiring diagrams these are easy get right.

I thought it was 91 and coincided with the release of the HO.....

[HOrnbrod]

OP was asking about 2WD transmissions.

 

EDIT:  But I did screw up. The AW4 2WD output spline count is 27, not 23. 23 is for the AW4 4WD output shafts, starting in 1991..... 

[jpnjim]

OP was asking about 2WD transmissions.

 

EDIT:  But I did screw up. The AW4 2WD output spline count is 27, not 23. 23 is for the AW4 4WD output shafts, starting in 1991.....

there was also an OD drive ratio change that went along with the 21-23 spline output change in (mid)1991 Don,

 

are you thinking the 2wd got the ratio change in 1990 instead of 1991?

[cruiser54]

 

OP was asking about 2WD transmissions.

 

EDIT:  But I did screw up. The AW4 2WD output spline count is 27, not 23. 23 is for the AW4 4WD output shafts, starting in 1991.....

there was also an OD drive ratio change that went along with the 21-23 spline output change in (mid)1991 Don,

 

are you thinking the 2wd got the ratio change in 1990 instead of 1991?

 

Now I'm not sure

[HOrnbrod]

I looked in the parts manuals and the AW4 2WD output shaft was the same p/n from 87-01. So 27 spline output shafts for all. The O/D ratio change was in 91 I believe.