NP231 to NV242 swap?

Z

Zoro

NAXJA Forum User

Location

Colorado

• Nov 17, 2005

• #1

There's an XJ in the junkyard with a nice NV242 transfer case hooked up to an AW4. How hard would it be to switch it out with mine which is an NP231 hooked up to an AX-15 for the NV242? Also which is better for off-roading? Someone told me all the new H1's have NV242's so that got me wondering.

 

T

Timber

NAXJA Forum User

Location

Slohio

• Nov 17, 2005

• #2

H1's use the NV 242HD AMG which is rated for 2,340 lb. ft. of torque and 11,500 lbs. GVW versus the NV 242 (ours) which is rated for 1486 lb. ft. of torque and 5,500 lbs. GVW. It'd be nice if XJs had those, though.

 

X

XgeekstarX

NAXJA Forum User

Location

winter springs, florida

• Nov 17, 2005

• #3

i'll trade you my 242 for your 231.

 

IntrepidXJ

NAXJA Member #647

Location

Grand Junction, CO

• Nov 17, 2005

• #4

i just did the opposite and went from a 242 to a 231. just make sure you get one with the same input as yours (21 or 23 spline) and i also found out there were different lengths on the inputs within the 23 spline years

 

T

TacticalFats

NAXJA Forum User

Location

New Joisey

• Nov 17, 2005

• #5

I'm mechanically retarded, but if I came across a 242, I'd be tempted to swap.

My work car was a 2003 Exploder w/full time 4wd; it was awesome in the rain.

 

Z

Zoro

NAXJA Forum User

Location

Colorado

• Nov 18, 2005

• #6

TacticalFats said:

I'm mechanically retarded, but if I came across a 242, I'd be tempted to swap.

My work car was a 2003 Exploder w/full time 4wd; it was awesome in the rain.

Click to expand...

That's kind of why I want it, I've noticed on the freeway in the rain the back end will start to sway in 2wd, then I put it in 4wd and no more sway. Only thing is I'm afraid of leaving it on and turning one day and busting a yoke or something.

So if the splines are the same there should be no problem with the NV242 going from an auto to a manual, right?

I know that the visous couplers go on these when Full-Time is used too much, if I stay in part-time off road I shouldn't damage anything, right?

 

T

Timber

NAXJA Forum User

Location

Slohio

• Nov 18, 2005

• #7

The only viscous anything on an XJ is the viscous fan drive. There is no viscous coupler in any XJ t-case unless it was swapped in through the aftermarket from a Grand.

 

L

Littlewhitexj

NAXJA Forum User

Location

Cadillac MI

• Nov 18, 2005

• #8

^^ The NV242 uses viscous couplers.

 

IntrepidXJ

NAXJA Member #647

Location

Grand Junction, CO

• Nov 18, 2005

• #9

Littlewhitexj said:

^^ The NV242 uses viscous couplers.

Click to expand...

no it does not. it uses a mechanical diff.

the NV249 uses viscous

 

T

Timber

NAXJA Forum User

Location

Slohio

• Nov 18, 2005

• #10

Littlewhitexj said:

^^ The NV242 uses viscous couplers.

Click to expand...

You mean NV249--used in Grand Cherokees. Try reading this: http://www.duff.ws/grand_central/tc_swap/249_vs_242.htm