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How many splines on a AX 15 transm.
- Thread starter Oseberg
- Start date
5-90
NAXJA Forum User
- Location
- Hammerspace
Oseberg said:
It should. As I recall, all AX-15 outputs (on Jeep vehicles) are 23-spline.
5-90
NAXJA Forum User
- Location
- Hammerspace
Oseberg said:
It should not. I think Jeep bought AX-15s directly from either Toyota or Aisin Drivetrain (who supplies to Toyota...) so you should be fine.
And, unless they used a non-standard spline pitch (which I highly doubt,) there should be no difference in the diameter of the output shaft, either.
Jeff in VA
<---respect
- Location
- Richmond, VA
Wrangler trannies are the same, but the holes for the transfer case studs are clocked about 10 degrees furthur clockwise than XJ/MJ trannies. You may have clearance issues with the floorpan and the transfer case, but nothing that can't be fixed with a BFH and some gentle persuasion 
Jeff
Jeff
xjbubba
NAXJA Member # 1524
- Location
- santa barbara, ca
I installed a np231 out of a '92 Wrangler into my '88 XJ sometime back, and there was no differences in the clocking.Jeff in VA said:Wrangler trannies are the same, but the holes for the transfer case studs are clocked about 10 degrees furthur clockwise than XJ/MJ trannies. You may have clearance issues with the floorpan and the transfer case, but nothing that can't be fixed with a BFH and some gentle persuasion
Jeff
I had to change the NP231's input shaft to a 21 spline unit to be compatable with my Peugeot's out put shaft; OSEBERG should be OK with his swap.
5-90
NAXJA Forum User
- Location
- Hammerspace
Oseberg said:
Yah - SUVs and pickup trucks. Maybe Nissan as well - I haven't started talking to Nissan or Aisin yet...
bajacalal
NAXJA Forum User
- Location
- San Diego (North County), California
Oseberg said:
Not really. Yes, it is a "Toyota" transmission. The internal parts are similar. Dodge also used it. The AX-15 was built to Jeep specifications. From other makes, there are differences such as the shaft lengths. I would not consider it interchangeable.
5-90
NAXJA Forum User
- Location
- Hammerspace
Jeff in VA said:Wrangler trannies are the same, but the holes for the transfer case studs are clocked about 10 degrees furthur clockwise than XJ/MJ trannies. You may have clearance issues with the floorpan and the transfer case, but nothing that can't be fixed with a BFH and some gentle persuasion
Jeff
Or just swap transfer case adapters, and call it good. That should only take a few minutes...
lawsoncl
NAXJA Forum User
- Location
- North Idaho
5-90 said:
From my recollection, pulling the xfer case adapter required pulling the shift tower and linkage, backup switch, draining fluid, etc. More like a 1/2-hour job. I think I'd rather use the BFH
.Rumor has the Dodge Dakota had the AX-15 for a while and its bellhousing can be used to mate an AX-15 up to the GM 60* pattern on the 4-banger.
