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post #1 of (permalink) Old 06-05-2001, 07:55 AM
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TJ Tcase Problem - Please advise.. :)

hey all,

About 5months ago or so my rear driveshaft came loose and it dropped off the rear. It wacked around a few times. I reinstalled the drive shaft and all and a few weeks later I noticed that the tcase was leaking. I also noticed that the drive shaft boot was missing.

I had my truck in for service for something else and I had them replace the seal and boot. A few days after I got the jeep back I was going down the highway and the Boot broke loose, and disappeared. When I stopped, the tcase was leaking fluid again.

I took it back to get it replaced (for free) and last night it did the same thing.

I have a few questions. Does the boot keep the tcase from leaking? I can deal with not having the boot but its leaking and I need to figure this out. A buddy has told me that the "cone" on the tcase has a bushing inside it and if the bushing is worn then the driveshaft is wobbling around enough to kill the new seal.. Does anybody have any suggestions?

I was told that I can replace the whole piece (cone, seal, bushing) at once and I should be ok. I am just trying to see if anybody knows anything about it.

Its a 97, 4cyl, 5spd.

thanks!

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post #2 of (permalink) Old 06-05-2001, 08:12 AM
 
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Re: TJ Tcase Problem - Please advise.. :)

How did the driveshaft come loose? U-joint failure right? Well any way, if the driveshaft was spinning when it came out(I assume it was cause you said it banged around a few times) the drive shaft could be now out of balance. If it is vibrating going down the road the slip yoke can eat up seals (it would have to be vibrating real bad though). Or you could have damaged the output housing(tailshaft housing-cone-whatever) leading to the seal never sitting right. Call the dealer and get a price on the cone, if it's not too much you might as well try it. And by the way, what ever you do don't run the T/C dry...they hate that.

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post #3 of (permalink) Old 06-05-2001, 08:19 AM
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Re: TJ Tcase Problem - Please advise.. :)

yeah, I was thinking the driveshaft was tweaked too.. but I don't have any more vibration than I did in the last 50k miles.

I think maybe when the drive shaft came loose, it might have messed up the cone and that bushing that I was told about. I am going to jack the jeep up tonight and see if I can wiggle the slip yoke any and see if there is any play.

Thanks.

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post #4 of (permalink) Old 06-05-2001, 08:22 AM
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Re: TJ Tcase Problem - Please advise.. :)

Hey you didnt tell me that the driveshaft came out. How the heck did you do that. Any way i would have the driveshaft checked to make sure its not bent. If it is out of wack it would eat a seal up pretty quick.

Can someone please bring me a hammer my 33's just ate my fender again. Damn i need more lift.
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post #5 of (permalink) Old 06-05-2001, 12:19 PM
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Re: TJ Tcase Problem - Please advise.. :)

If you find you need the new cone/housing, I just put an SYE on my tcase from my 2000 and have the old housing here. It still has the bearing in it, you just need the new seal. You pay for shipping and it's yours.

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post #6 of (permalink) Old 06-05-2001, 12:21 PM
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Re: TJ Tcase Problem - Please advise.. :)

Hey, I think I will take you up on that offer! now, this is for a tcase in a 4cyl jeep right? I am going to first see if my drive shaft is balanced first. Then i will decide if I am going to replace the cone. I think its the cone though.

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post #7 of (permalink) Old 06-05-2001, 12:23 PM
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Re: TJ Tcase Problem - Please advise.. :)

Oh yeah, I also have my stock tcase shaft and stock rear driveshaft if it turns out to be one those causing you problems.

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post #8 of (permalink) Old 06-05-2001, 12:42 PM
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Re: TJ Tcase Problem - Please advise.. :)

No, it's from a 6 cyl. I don't know if or what the difference is but I'm sure someone on here can tell us. I'm about to go back to work, i'm on lunch now, so I'll check back with you after work or you can email at [email protected]

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post #9 of (permalink) Old 06-06-2001, 10:43 AM
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Re: TJ Tcase Problem - Please advise.. :)

It's the same t-case housing. I have an assembly print of the case. If it's a 231 then it's a 231. The only difference is the 99 and up have dampers on them, wich means there is a ground diameter on the shaft for the damper to press fit on the shaft.

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