can a transfercase from a auto fit a stick trans?np242 instead of a np231?


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Old 08-21-2009, 11:52 PM   #1
86rokee
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Default can a transfercase from a auto fit a stick trans?np242 instead of a np231?

so i work at a big wrecking yard now and theres lots of jeeps there most are cash for clunkers, purposely seized xj motors....u guys have heard i assume...
anyway there a 90s xj sport 4 door auto runs and drives supposedly. tomorrow on my lunch ill start it. i can work it off, but its in bad shape out side. dents grill gone, door ripped by forklift most llikely, roof caved in slightly rear bumper tweaked . its a 4.0 auto with a np231...i want the full time 4wd though. and possibly the 5 speed out of another jeep with the newer fender trim and sidemarkers, unsure of the year yet but its a 5speed without fulltime 4wd.do the suto tranys mate to the 5speed?
whats better for wheeling auto or manual?is the np242 good?
im at a wrecking yard so i can mix and match stuff all i want. need input asap so i dont make any mistakes. i like the updated interiors will they swap to my 86?
i probably wont put the motor in my 86 ill probably just roll with a jeep already 4.0


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89 Laredo 4.0 np242
94 Z28 LT1 350 107k, wreck@130mph-sold
93 yamaha FZR 600-sold
92 ford probe gt 2.2l turbo, greddy bov ,boost controller, 2.5" cat back, flowmaster 13psi boost-sold
91 xj limited no cat and flowmaster:P-traded for 98 eclipse
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Old 08-22-2009, 08:00 AM   #2
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Quote:
Originally Posted by 86rokee View Post
so i work at a big wrecking yard now and theres lots of jeeps there most are cash for clunkers, purposely seized xj motors....u guys have heard i assume...
anyway there a 90s xj sport 4 door auto runs and drives supposedly. tomorrow on my lunch ill start it. i can work it off, but its in bad shape out side. dents grill gone, door ripped by forklift most llikely, roof caved in slightly rear bumper tweaked . its a 4.0 auto with a np231...i want the full time 4wd though. and possibly the 5 speed out of another jeep with the newer fender trim and sidemarkers, unsure of the year yet but its a 5speed without fulltime 4wd.do the suto tranys mate to the 5speed?
whats better for wheeling auto or manual?is the np242 good?
im at a wrecking yard so i can mix and match stuff all i want. need input asap so i dont make any mistakes. i like the updated interiors will they swap to my 86?
i probably wont put the motor in my 86 ill probably just roll with a jeep already 4.0
I asked a similar question some time back and this is what I understand:

Manual transmissions use a 21 spline input shaft

Automatics use a 23 spline input shaft.

If you've got the Peugot BA10/5 manual trans, you might want to convert to a stronger tramsmission like the AX5. The Peugot is designed for use in a lightweight French car with an engine less than half the size of a 4.0.

Budd
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Old 08-22-2009, 08:58 AM   #3
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thanks
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89 Laredo 4.0 np242
94 Z28 LT1 350 107k, wreck@130mph-sold
93 yamaha FZR 600-sold
92 ford probe gt 2.2l turbo, greddy bov ,boost controller, 2.5" cat back, flowmaster 13psi boost-sold
91 xj limited no cat and flowmaster:P-traded for 98 eclipse
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86 xj 2 door gone
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Old 08-22-2009, 09:25 AM   #4
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i think the ax5 is the 4 cylinder 5 spd the ax15 is the stronger one.
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Old 08-22-2009, 02:56 PM   #5
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The AX15 is the stronger of the two manny trans. As for the tcase, you just need to make sure that the spline counts match up, and they should work without an issue.
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Old 08-22-2009, 08:01 PM   #6
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Quote:
Originally Posted by 88fadedglory View Post
I asked a similar question some time back and this is what I understand:

Manual transmissions use a 21 spline input shaft

Automatics use a 23 spline input shaft.

If you've got the Peugot BA10/5 manual trans, you might want to convert to a stronger tramsmission like the AX5. The Peugot is designed for use in a lightweight French car with an engine less than half the size of a 4.0.

Budd
Not 100% true. AX5 has a 21 spline output and AX15 has 23 spline output. The Peugot also has a 21 spline output.
Aw4 was 21 spline output until 1991 when it was upgraded to 23 spline output.
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Old 08-22-2009, 10:34 PM   #7
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Quote:
Originally Posted by Quinn View Post
Not 100% true. AX5 has a 21 spline output and AX15 has 23 spline output. The Peugot also has a 21 spline output.
Aw4 was 21 spline output until 1991 when it was upgraded to 23 spline output.
I stand corrected. Thanks, Quinn.

As my step-dad used to say, "if yer not larnin sumptin new everday, check yer pulse."

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Old 08-23-2009, 01:14 AM   #8
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Quote:
Originally Posted by Quinn View Post
Not 100% true. AX5 has a 21 spline output and AX15 has 23 spline output. The Peugot also has a 21 spline output.
Aw4 was 21 spline output until 1991 when it was upgraded to 23 spline output.
the jeep is a 98 sport auto np231 i want to swap in a 5speed from like a 97 and grab a np242 from a 95 xj classic. will this work?
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project pos:http://www.cherokeetalk.com/forum/f2...p-build-16858/
89 Laredo 4.0 np242
94 Z28 LT1 350 107k, wreck@130mph-sold
93 yamaha FZR 600-sold
92 ford probe gt 2.2l turbo, greddy bov ,boost controller, 2.5" cat back, flowmaster 13psi boost-sold
91 xj limited no cat and flowmaster:P-traded for 98 eclipse
93 zj gone
86 xj 2 door gone
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Old 08-23-2009, 04:17 PM   #9
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As mentioned, there are two input spline counts (21-sp and 23-sp.) There are also a few different "lengths" of input on the AW4-destined cases. I do not believe that it makes a difference when swapping it to a manual transmission, but don't hold me to it just yet.

I'm planning a similar swap tho - while I'd prefer to go NV3550/D300, I'll take AX-15e/NP242 (and I have most of the parts for the latter swap anyhow.)
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Old 08-23-2009, 11:18 PM   #10
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Quote:
Originally Posted by 5-90 View Post
As mentioned, there are two input spline counts (21-sp and 23-sp.) There are also a few different "lengths" of input on the AW4-destined cases. I do not believe that it makes a difference when swapping it to a manual transmission, but don't hold me to it just yet.

I'm planning a similar swap tho - while I'd prefer to go NV3550/D300, I'll take AX-15e/NP242 (and I have most of the parts for the latter swap anyhow.)
those are sorta gm 4.3l 5 speeds huh?
i just bought a 93 grand cherokee with the np242 and auto, not sure what auto it is. its a nice rig so it wont get sacrificed to the xj gods:P i should but i wont. im just gunna fix it








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MY POCKETS ARE EMPTY
project pos:http://www.cherokeetalk.com/forum/f2...p-build-16858/
89 Laredo 4.0 np242
94 Z28 LT1 350 107k, wreck@130mph-sold
93 yamaha FZR 600-sold
92 ford probe gt 2.2l turbo, greddy bov ,boost controller, 2.5" cat back, flowmaster 13psi boost-sold
91 xj limited no cat and flowmaster:P-traded for 98 eclipse
93 zj gone
86 xj 2 door gone
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Old 08-24-2009, 05:08 PM   #11
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The NV3550 was used in late (2000-up) Jeep XJ/TJ, the V6 Dakota, and some of the smaller GM light trucks.

The NV3550 uses the same bellhousing as the AX-15e, so that opens up the field for finding one.

NP transfer case mounting patterns are all based off of the D300, so that's no trouble either. 21-sp or 23-sp inputs should be available from Novak for most of their cases as well.
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Old 08-26-2009, 11:47 AM   #12
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Quote:
Originally Posted by 5-90 View Post
The NV3550 was used in late (2000-up) Jeep XJ/TJ, the V6 Dakota, and some of the smaller GM light trucks.

The NV3550 uses the same bellhousing as the AX-15e, so that opens up the field for finding one.

NP transfer case mounting patterns are all based off of the D300, so that's no trouble either. 21-sp or 23-sp inputs should be available from Novak for most of their cases as well.
so is it stronger than the ax-15 is the ax-15e differant from a reg ax-15? or just the proper code name?
they didnt make any manual grand cherokees did they?
even though i got the zj i still wanna do a swap on the 86. whats the best year 4.0 to look for?and if i go auto if i cant find a good 5speed whats the best one or year? to get?
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MY POCKETS ARE EMPTY
project pos:http://www.cherokeetalk.com/forum/f2...p-build-16858/
89 Laredo 4.0 np242
94 Z28 LT1 350 107k, wreck@130mph-sold
93 yamaha FZR 600-sold
92 ford probe gt 2.2l turbo, greddy bov ,boost controller, 2.5" cat back, flowmaster 13psi boost-sold
91 xj limited no cat and flowmaster:P-traded for 98 eclipse
93 zj gone
86 xj 2 door gone
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Old 08-26-2009, 12:01 PM   #13
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Quote:
Originally Posted by 86rokee View Post
so is it stronger than the ax-15 is the ax-15e differant from a reg ax-15? or just the proper code name?
they didnt make any manual grand cherokees did they?
even though i got the zj i still wanna do a swap on the 86. whats the best year 4.0 to look for?and if i go auto if i cant find a good 5speed whats the best one or year? to get?
According to Advance Adaptors, AX15 and NV3550 are fairly similar in strength. I've also read this on the Novak Adapt site.
Advance Adapters Information on the Jeep AX15 5 Speed Manual Transmissions| Engine & Transmission Conversion Adapters - Advance Adapters

And yes, the AX15 was put in ZJ's for just one year, 1993.
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Old 08-27-2009, 09:19 PM   #14
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If that's an early production 93 ZJ theres a chance the trans is the AW-4. They are rare and MUCH better a trans than their 42re replacements.

Show us a pic of the shift pattern.
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Old 08-28-2009, 11:56 PM   #15
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Quote:
Originally Posted by OverlandXJ View Post
If that's an early production 93 ZJ theres a chance the trans is the AW-4. They are rare and MUCH better a trans than their 42re replacements.

Show us a pic of the shift pattern.
ill take it right now brb


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MY POCKETS ARE EMPTY
project pos:http://www.cherokeetalk.com/forum/f2...p-build-16858/
89 Laredo 4.0 np242
94 Z28 LT1 350 107k, wreck@130mph-sold
93 yamaha FZR 600-sold
92 ford probe gt 2.2l turbo, greddy bov ,boost controller, 2.5" cat back, flowmaster 13psi boost-sold
91 xj limited no cat and flowmaster:P-traded for 98 eclipse
93 zj gone
86 xj 2 door gone
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