2002 Transfer Case In A 2005 KJ

Fulltimer · **Posted:** Mon Dec 29, 2008 12:36 pm

I read a discussion on here (I think) once about putting a 02 TC in a 05 KJ, just can't find it. If I could get one really cheap would it work? They are geared lower so if it would work it would be great!

Terry

tjkj2002 · **Posted:** Mon Dec 29, 2008 12:52 pm

Fulltimer wrote:

I read a discussion on here (I think) once about putting a 02 TC in a 05 KJ, just can't find it. If I could get one really cheap would it work? They are geared lower so if it would work it would be great!

Terry

You can swap a 231 from a '02 to a '05 that had a 231,same goes for the 242 t-case.Now if you swap from a 231 to a 242 is where some mods will be needed.

Oh and they all are geared the same,1:1 high and 2.72:1 in low no matter the year.

Fulltimer · **Posted:** Mon Dec 29, 2008 2:33 pm

The 02 I had when put in 4Lo it would just creep along. When you let off the gas abruptly it was like hitting the brakes. My 05 in 4Lo isn't as drastic. Wouldn't that seem to be lower gearing in the 02.

Terry

tommudd · **Posted:** Mon Dec 29, 2008 2:49 pm

idle speed may have been different plus the 02 has a different trans than the 05 so depending on idle speed, what gear you had it in etc would effect the ground speed

tjkj2002 · **Posted:** Mon Dec 29, 2008 2:59 pm

Fulltimer wrote:

The 02 I had when put in 4Lo it would just creep along. When you let off the gas abruptly it was like hitting the brakes. My 05 in 4Lo isn't as drastic. Wouldn't that seem to be lower gearing in the 02.

Terry

The trans is what is different,the 45RFE has a lower 1st gear ratio then the 42RLE does.

Fulltimer · **Posted:** Mon Dec 29, 2008 4:11 pm

tjkj2002 wrote:

Fulltimer wrote:

The 02 I had when put in 4Lo it would just creep along. When you let off the gas abruptly it was like hitting the brakes. My 05 in 4Lo isn't as drastic. Wouldn't that seem to be lower gearing in the 02.

Terry

The trans is what is different,the 45RFE has a lower 1st gear ratio then the 42RLE does.

There ya go! That is what I read once and you were the one that explained it. Thanks for the second time!! :lol:

Terry

2005KJSport · **Posted:** Mon Dec 29, 2008 4:14 pm

Fulltimer....In case you are now looking for a 45RFE auto trans for sale :lol:

http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?t=38096

Fulltimer · **Posted:** Mon Dec 29, 2008 6:26 pm

If it were a direct swap with no computer issues it would be worth it.

Terry

tommudd · **Posted:** Mon Dec 29, 2008 6:35 pm

Depends on what you think it is worth changing, for me not unless mine went out and I had a 02 laying here ready to go in , other wise run it in the ground :wink:

2002 Transfer Case In A 2005 KJ

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