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-   -   Zj 1998 5.9l (http://www.jeepforum.com/forum/f13/zj-1998-5-9l-820425/)

jappe 07-20-2009 01:48 AM

Zj 1998 5.9l
 
I need to replace transfercase 249 last bearing. It is after Viscous coupling. I read that 1998 5.9L model has stronger output than others. How it is tronger?

Question: Is bearing inner diameter still same than other models?

Mike Cooper 07-20-2009 08:55 AM

Its the input shaft thats stronger. They used more gears around the sun gear I believe its called. The 242's had 3, the 249 has 6, as well the teeth are cut on a different angle. You will need to use the front half of the 249 case, and input shaft, with the rest of the innards of the 242 and rear half of the case of the 242 if you are doing a 242 swap.

jappe 07-20-2009 02:58 PM

No swap
 
I just want to put new bearing (last one). I am happy with my transfer case. I order one, but new bearing inner diameter was 0,4 mm too small. Very little but enought, too small.

If last bearing is same in 5.4L and 5.9L transfer case, I have wrong bearing (not any Jeep). I they are not, I have 5.2L bearing.

Mike Cooper 07-20-2009 07:33 PM

I think the 5.9 is different than the 5.2 in size

jeepguy98 07-20-2009 08:27 PM

yea why doesnt anyone like the 249?

Colorado 5.9 07-21-2009 01:53 AM

As far as I know all 96 to 98 249's are the same. Quite a few years ago I ordered a complete rebuild kit for a plain old 249 & everything fit just fine.

I've never heard of the 5.9 249 being heavy duty compared to a reg 98 ZJ. The only thing published was the heaavy duty rear driveshaft.

j.love 07-21-2009 02:33 AM

Quote:

Originally Posted by Colorado 5.9 (Post 7617762)
As far as I know all 96 to 98 249's are the same. Quite a few years ago I ordered a complete rebuild kit for a plain old 249 & everything fit just fine.

I've never heard of the 5.9 249 being heavy duty compared to a reg 98 ZJ. The only thing published was the heaavy duty rear driveshaft.

I'm going to agree with Colorado here. And also say that the 249 and the 242 both use 3 sun gears in the planetary gear set up.
There was a gear cut change around 94/95. and using a "split case" set up is the way around that.

5.9 drive shaft is a heavier shaft along with a different length due to the transmition being longer.

Somebodies books are off. Call a dealer and get a dealer part number and Napa will match it up for you.

Mike Cooper 07-21-2009 05:44 AM

I am going based off of the 249>242 swap I did, and my buddy did. Hes got a 95, which only had 3 sun gears in his 249, and mine had 6. I cannot find any documents on this either. I have another buddy with a 5.9 going to be doing his soon as well, we will look and see if its the same as mine. I can see them doing it for the extra power of the 5.9.

Colorado 5.9 07-21-2009 12:31 PM

Sorry guys. For the life of me I can't remember how many sun gears there were on my 249. It's been too long since I tore into it.

ratmonkey 07-21-2009 01:05 PM

the 249 is three...231,242,249 all have three planetaries to the one sun gear.
perhaps you're thinking of the center diff on the 242, which has 6 planetary gears.

Mike Cooper 07-21-2009 09:39 PM

http://memimage.cardomain.com/member...87_26_full.jpg

The gears on this are the sun gears correct? I am telling you, mine had 6 gears on it, unlike this one in the picture. Perhaps I am just lucky, who knows.

j.love 07-21-2009 10:50 PM

yep, thats the input shaft in the sun gear basket. that one has 3 sun gears.

you will just have to take your all apart again and snap a picture for us. :P

Mike Cooper 07-22-2009 12:19 AM

LOL, out of curiosity, what t-cases came with 6 sun gears? I cant find any info one jeep ones that had them. What other vehicles came with the 249 that might have had 6 sun gears?

Colorado 5.9 07-22-2009 02:06 AM

I think the HD 242 out of a Durango has 6. The Hummer also had the HD 242.


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