[josborn55]

is there a difference in np231 for a manuel and a automatic?Are the universal?

 

[desertCJ]

The input shafts could be different. There are 23 spline long, short and a medium I think from grand cherokees. Then there are 21 spline inputs as well, usually from 4 cyl vehicles.

 

[jlake1]

like the man says; what's the application? Biggest is just 21 spline for 4cyls, and pre-91' 4.0's and 23 spline for others. Not sure about 231HD or real new applications though.

Jay

 

[ROLLIN33S]

Not to sure, but I took one from a 88' auto 4.0L and put it in my 89' many 4.0L. Not to sure if that helps you out any but it worked for me. Both 23 spline

 

[drbowser3]

I think all 231 are 23 spline unless they are behind a Peugeot in 88' and 89'. 21 spline behind an Ax-5. But there may be a difference in long and short input shafts. I think one is flush and one protrudes out like 1/2". I think

 

[redrumse7en]

http://www.novak-adapt.com/catalog/231_input_gears.htm

 

[josborn55]

Well my 92 xj 231 transfer messed up and i found a 94 yj with 231 so are they interchangable? the yj was manuel if it matters?

 

[redrumse7en]

Depends on what tranny the YJ TC was connected to. AX5 or AX15? What tranny is in your XJ? Look at the chart on Novak's site to see what interchanges.

 

[actionpaintball]

Even if teh input shaft are different-you can easily swap out the shafts in about 30 minutes from 21 to 23. Also-the vacuum lines are slightly different-I put a TCASE from a cherokee ( I think it had an extra C after the NP231 stamp) and the vacuum modlue was father to the rear-but the lines strectched. So-as long as you input shaft is still good-you can just change teh shafts out.

 

[geberhard]

easy to swap the front shaft (use the old one), if the new one does not fit. DO IT!

 

[jeepcoop]

I think all 231 are 23 spline unless they are behind a Peugeot in 88' and 89'. 21 spline behind an Ax-5. But there may be a difference in long and short input shafts. I think one is flush and one protrudes out like 1/2". I think

CORRECT 21 spine for the BA 10/5 on the 88 and 89. Man. or auto all the same