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nick86
March 3rd, 2007, 05:35
can the transfer case chain be replaced w/ t/c in the vehicle? It's on a 96 w/ a np242.

BlueCuda
March 3rd, 2007, 06:58
Never have done a 242 but its gravy with a 231, so is doing an SYE in the vehicle as well. Both of the above are easier than pulling the t-case IMO.

Seiler
March 3rd, 2007, 07:38
Yes. I had my chain stretched a while back. Just remove all the bolts around. Take the two halves apart and boom. You're in. It's not that hard to get out, the only difficult part is holding up those gears and that chain so you can fit the back half back on. You get it eventually though.

Scott

mecompco
March 3rd, 2007, 07:49
Sorry for the slight hijack, but how do you tell if the chain is stretched? Since my 242 is apart on the bench now, this would be the time to change the chain if it needs it. Thanks.

ScienceguyXJ
March 3rd, 2007, 08:20
I've heard that anything more than 1/8" to 1/4" is too much slack. Maybe put it back on the gears and see how much play there is. If you can move it by as much as an inch or more than it's probably garbage. I need to check mine this weekend. Gonna just drain the fluid and check it from the drain hole (np231).

nick86
March 3rd, 2007, 08:34
Ok, so now I'm thinking I got a 231. My lever has 2wd/4wd high/nuetral/ & 4low. this is a 231 pattern correct?

nick86
March 3rd, 2007, 08:35
I should add I'm under a foot of snow w/ no heated garage, so can't check for a tag on t/c.

87manche
March 3rd, 2007, 08:38
Ok, so now I'm thinking I got a 231. My lever has 2wd/4wd high/nuetral/ & 4low. this is a 231 pattern correct?
that's a 231 pattern
if it was a 242 you'd have a full time and part time option for 4 hi.
basic premise is the same.

nick86
March 3rd, 2007, 08:48
thanks manche, sorry bout the wiener, lol

Seiler
March 3rd, 2007, 08:52
Sorry for the slight hijack, but how do you tell if the chain is stretched? Since my 242 is apart on the bench now, this would be the time to change the chain if it needs it. Thanks.

mecompco,

Mine started slipping around the gears when I had it in 4 wheel drive and made a really raunchy clunking noise. I took the case apart... And you could tell the chain was stretched. Here's two comparison photos to give you an idea:

First one: Stretched chain
http://i25.photobucket.com/albums/c78/xj2/tcasechain1.jpg
Second one: New chain
http://i25.photobucket.com/albums/c78/xj2/tcasechain2.jpg

Scott

nick86
March 3rd, 2007, 08:59
scott, so this can be done in the vehicle, from the pic's looks like you just remove a gear and chain & reverse w/ new?

Seiler
March 3rd, 2007, 09:14
scott, so this can be done in the vehicle, from the pic's looks like you just remove a gear and chain & reverse w/ new?

You got it. Didn't have to unbolt the crossmember to lower the tranny or anything. Although, that can always be done to make things a little easier.

I switched the chain out in a few hours with the help of a friend while it was sitting on the ground and all.

Scott

Goatman
March 3rd, 2007, 14:33
I've done it both ways, in the rig and out, and I much prefer doing it out, but it's a matter of personal preference. There aren't that many more bolts to be able to remove the t-case, and it's much easier splitting the case and working on it on the bench.

If the rig has a bunch of miles on it, and this is the first time the t-case has been apart, it's probably a good idea to replce the chain while you have it apart. It's also a very good idea to replace the plastic pads on the shift forks, and it's cheap.

nick86
March 3rd, 2007, 15:12
where are these plastic pads? and can they be replaced on th vehicle?

mecompco
March 3rd, 2007, 15:28
Scott, thanks--from your pics, I think mine is fine--it is nowhere near hitting the side of the case. Just out of curiosity, how much was the chain? If it's not too bad, it might be worth putting in a new one and keeping the old one for a spare. It's a small pic, but here's mine before pulling the shaft:
http://www.geocachingmaine.org/gallery/data/500/NP-242.jpg

Seiler
March 3rd, 2007, 15:30
Scott, thanks--from your pics, I think mine is fine--it is nowhere near hitting the side of the case. Just out of curiosity, how much was the chain? If it's not too bad, it might be worth putting in a new one and keeping the old one for a spare.

I forget how much it was exactly. I believe it was in the $80 - $100 range. So it's not cheap, but not uber expensive either.

From the picture you provided. I say you look just fine. Mine's a 1997 and I don't think it had ever been replaced. Yours looks a lot more healthy than mine did lol.

Scott

mecompco
March 3rd, 2007, 18:03
I forget how much it was exactly. I believe it was in the $80 - $100 range. So it's not cheap, but not uber expensive either.

From the picture you provided. I say you look just fine. Mine's a 1997 and I don't think it had ever been replaced. Yours looks a lot more healthy than mine did lol.

Scott

Hey, thanks. This is out of a '92 I bought for parts (140K) my '94 has 180K and I highly doubt it's ever been changed either. The shaft is at Tom Wood's now--I plan to run the '92 and keep the '94 (which has always worked fine) for a spare.

Goatman
March 3rd, 2007, 19:35
where are these plastic pads? and can they be replaced on th vehicle?

The plastic pads are on the two shift forks, and should be replaced with new ones if the rig has well over 100k miles on it and you have it apart. The pads come in a very inexpensive kit from the dealer. Since the pads sit between the shift fork and the engagement ring, if they wear out you can have trouble with the t-case staying in gear. They're cheap, best to replace them.

Chains are around $100.

Kittrell
March 3rd, 2007, 19:40
http://i25.photobucket.com/albums/c78/xj2/tcasechain2.jpg

Scott

It's amazing what Royal Purple can do for the inside of a case, soooo clean. Damn did we really do that in '05? I'm getting old.

Kittrell
March 3rd, 2007, 19:42
The plastic pads are on the two shift forks, and should be replaced with new ones if the rig has well over 100k miles on it and you have it apart. The pads come in a very inexpensive kit from the dealer. Since the pads sit between the shift fork and the engagement ring, if they wear out you can have trouble with the t-case staying in gear. They're cheap, best to replace them.

Quadratec also sells the pads. Thats where I got mine, never ended up needing them though. Should be in Geoff's case by now. Any idea what the dealer charges for them offhand? I know they were cheap through QT.

Seiler
March 3rd, 2007, 22:05
It's amazing what Royal Purple can do for the inside of a case, soooo clean. Damn did we really do that in '05? I'm getting old.

Yeah. I can't believe it was that long ago either. But I still have that same royal purple in the case that we put in there... :wow:

I think it might be time to do a fluid change lol..

Scott

BlueCuda
March 4th, 2007, 05:44
Don't feel so special about the royal purple lol, my 97 had 205K on it when I cracked it open for an SYE and a chain and it was that clean inside as well. I went to 10/40 per recomendation of a local 4wd shop and works better or at least seems to. Smoother to shift and less noise in 4 low.

Kittrell
March 4th, 2007, 11:38
Don't feel so special about the royal purple lol, my 97 had 205K on it when I cracked it open for an SYE and a chain and it was that clean inside as well. I went to 10/40 per recomendation of a local 4wd shop and works better or at least seems to. Smoother to shift and less noise in 4 low.

You didn't see it before we ran the purple.