21 or 23 splines

yj86 · 07-07-2009, 03:11 AM

will a transfer case from a donor Cherokee with a inline 6 and automatic tranny have 21 splines or 23 like the ax 15 on the input shaft and it is a np 231 transfer case

**4Jeepn** · 07-07-2009, 11:51 AM

I will guess 23w/ 4.0Ll. Most XJ's have the 231.. some have the 242(?) or 241 full time case so be careful.

yj86 · 07-10-2009, 02:26 AM

what about a 231 off a ax 5 that should be a direct replacement right thanks ahead of time

**1BLKJP** · 07-10-2009, 03:23 AM

I believe all of the AX-5's were 21 spline.

KeepItCrunk96zj · 07-10-2009, 04:30 PM

All xj's are 21 spline unless they were a AX15 5 speed. All pougeot BA10 5 speeds were 21, autos were 21, everything but 5 speed AX15, which would be 90 or newer for sure is 21 spline. Some had a 242 case, in which case they may be a 23 spline, but it still bet on 21 if its behind a AW4. I dont beleive any xj's came with a 241. grand cherokee zj's came with a 249 fulltime case behind the v8 and some 4.0s. all AX5 are 21 spline as well.

im in a dillema too... forgot the BA10 was 21 spline, so i did a sye on it and when i went to put it in my yj... oops, no fitty.

yj86 · 07-11-2009, 04:30 PM

thanks for the info so how hard is it to change the input shaft and what will i need besides the obvious

07-07-2009, 03:11 AM	#1
yj86 Newb Join Date: Mar 2009 Posts: 10	21 or 23 splines will a transfer case from a donor Cherokee with a inline 6 and automatic tranny have 21 splines or 23 like the ax 15 on the input shaft and it is a np 231 transfer case

07-07-2009, 11:51 AM	#2
4Jeepn IITYWTMWYBMAB ::WF Moderator:: Join Date: Apr 2005 Location: Florence, KY Posts: 3,707	I will guess 23w/ 4.0Ll. Most XJ's have the 231.. some have the 242(?) or 241 full time case so be careful. __________________ 79968500019700979397 97 5.2L Have you filled up your V8 today?

07-10-2009, 03:23 AM	#4
1BLKJP Jack Lives Here!!! ::WF Administrator:: Join Date: Apr 2005 Location: Phoenix, AZ Posts: 7,576	I believe all of the AX-5's were 21 spline. __________________ Thanks, Jack Hickman Executive Board - Arizona Off-Highway Vehicle Coalition Arizona State Association of 4Wheel Drive Clubs Arizona Rock Rats Tread Lightly Tread Trainer

07-10-2009, 04:30 PM	#5
KeepItCrunk96zj Newb Join Date: Jun 2009 Posts: 7	All xj's are 21 spline unless they were a AX15 5 speed. All pougeot BA10 5 speeds were 21, autos were 21, everything but 5 speed AX15, which would be 90 or newer for sure is 21 spline. Some had a 242 case, in which case they may be a 23 spline, but it still bet on 21 if its behind a AW4. I dont beleive any xj's came with a 241. grand cherokee zj's came with a 249 fulltime case behind the v8 and some 4.0s. all AX5 are 21 spline as well. im in a dillema too... forgot the BA10 was 21 spline, so i did a sye on it and when i went to put it in my yj... oops, no fitty. __________________ 88 YJ. 4.2/Weber36Syncro/AX15/CentorforceStg2/231/SYE/Spring Over/Shackle Reversal/35'' MTRs/Weld-On Beadlocks/WJ Knuckles&Brakes/X-overSteering/Gusseted XJ HP30/Gusseted XJ D44/MinorCageTie-Ins/JK Bumper/Ramsey9500Multi-Mount In the works:4.5 stroker (4.0 block) runnin on PANEEE

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07-10-2009, 02:26 AM	#3
yj86 Newb Join Date: Mar 2009 Posts: 10	what about a 231 off a ax 5 that should be a direct replacement right thanks ahead of time

07-11-2009, 04:30 PM	#6
yj86 Newb Join Date: Mar 2009 Posts: 10	thanks for the info so how hard is it to change the input shaft and what will i need besides the obvious

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