input shafts

jeepcomj

NAXJA Forum User

Location

wisconsin

• Feb 24, 2008

• #1

is an np242 input shaft interchangeable with an np231 input shaft? it's a strange question, i know.

 

8Mud

NAXJA Forum User

Location

Central Germany

• Feb 24, 2008

• #2

I'll look it up and get back to you, but I doubt it. I do know there are different spline counts even between some model year 231's and some indexing differences.

 

Last edited: Feb 24, 2008

jeepcomj

NAXJA Forum User

Location

wisconsin

• Feb 24, 2008

• #3

*sigh* thanks but,

try again

any differences in the input shafts between the np242 and np231???

 

jeepcomj

NAXJA Forum User

Location

wisconsin

• Feb 24, 2008

• #4

k, thanks

 

8Mud

NAXJA Forum User

Location

Central Germany

• Feb 24, 2008

• #5

I didn't find any common part numbers, but I didn't check every year.

 

jeepcomj

NAXJA Forum User

Location

wisconsin

• Feb 24, 2008

• #6

there wouldn't be then.

I will just try it and see what happens.

 

F

falcon556

NAXJA Forum User

Location

Tulsa

• Feb 24, 2008

• #7

jeepcomj said:

is an np242 input shaft interchangeable with an np231 input shaft? it's a strange question, i know.

Click to expand...

Yes.
If they are same length, spline count and gear tooth style.
It would help if you gave us some info like year, type of transmission etc.
XJs have been around for a while, they are not identical.

 

jeepcomj

NAXJA Forum User

Location

wisconsin

• Feb 24, 2008

• #8

haha. yes, IF

uh. it's a pretty laid back, simple question. they didn't change the internals of the 231 from at least 87-96, and probably all the way through 01 or longer. same with the 242. there are variances between brands of course, BUT.

this is a jeep forum. i'm using jeep parts.

so. I'm pulling an np242 from a 1990 xj that has a 21 spline input shaft (or should). JUST in case....i'm wondering if the input shaft can be swapped between the np231 and np242. reason being, i have a long 21 spline input shaft from an np231 that would go in...

thanks

 

jeepcomj

NAXJA Forum User

Location

wisconsin

• Feb 24, 2008

• #9

nevermind everyone, i found my source

http://www.hobbyguild.com/jeep/index.html

the answer is yes, they are interchangeable.

which means I may also be able to interchange the proper one from an np207. this is about to get interesting...

 

F

falcon556

NAXJA Forum User

Location

Tulsa

• Feb 24, 2008

• #10

jeepcomj said:

haha. yes, IF

uh. it's a pretty laid back, simple question. they didn't change the internals of the 231 from at least 87-96, and probably all the way through 01 or longer.

thanks

Click to expand...

Actually, they did.
Besides the obvious, sometime in 95, I think, they changed the tooth style.
The input shaft gear has to match the tooth style of the case low range gear.

 

jeepcomj

NAXJA Forum User

Location

wisconsin

• Feb 24, 2008

• #11

what's the obvious?

I'll be using a late 80's input shaft on itso it should work. we will see.