Anyone have any advice for me before i plow into it. Leaking like crazy so i have to replace today. any help would be appreciated. Ben
Transfer Case front output shaft seal
- Thread starter billybob_98
- Start date
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It is pretty straight forward. If you have an FSM just follow that, you shouldn't have any suprises. I am working from memory here and it has been a while since I did my rear seal, but the proceedure goes something like this:
1. Remove front drive shaft from front output flange.
2. Unstake the nut that holds on the flange.
3. Remove nut and flange.
4. Remove old seal.
5. Install new seal.
6. Reinstall flange with new nut.
7. Stake nut.
8. Reinstall drive shaft.
1. Remove front drive shaft from front output flange.
2. Unstake the nut that holds on the flange.
3. Remove nut and flange.
4. Remove old seal.
5. Install new seal.
6. Reinstall flange with new nut.
7. Stake nut.
8. Reinstall drive shaft.
only thing to add to the above proceedure is to visually check the sleeve on the output flange for pitting or wear grooves. it should be free of any such surface irregularities which if present, is most likely the cause of your seal leak. this sleeve is the surface that creates the seal in your seal so if it is damaged or worn, replace the output flange as well or you will continue to tear up new seals every time you replace one.
-dogboy- '87 FJ60
-dogboy- '87 FJ60
- Thread starter
- #4
thank you guys, just thought i'd double check while i was on here.
Companion flange lock nut torque to 94 ft-lb Propeller shaft nuts to 65 ft-lb.
- Thread starter
- #6
alright, i have gotten everything apart, it started raining some hours ago so i quit after the dismantle, but i should be back to it in an hour or so. i have some of the old seal stuck to flange it covered and some bits and pieces fell into the case. what are some solutions that i can do to get the seal pieces out with out full dissassembly. my old seal was stuck like a m/f and it took scraping with knives, scrapers, screwdrivers, and pointed tipped punches. it is still full of crap. that has to be cleaned. any good suggestions. thanks, ben
in case you have any scoring on the flange and iirc, the speedi sleeve for the flange is a 99189
Make sure you put a little bit of RTV on the shaft splines before re-installing the flange, then I like to fill that small cavity area that is left right at the end of the splines and the flange inner splines (hope this makes sense) with RTV, use the little nozzle thingy that comes with the tube. Smear a light coat of RTV on the back of the big washer, put it on the shaft, then a new stake nut. A lot of times these leaks are actually lube coming up thru the splines, not coming around the seal.
As for the "chunks", I would get as much out as possible, maybe with a dental pick and a slim pair of tweezers. Dump a jug of gear lube in the case before you replace the seal so it will wash as much as possible out forward. Then as long as the chunks are just rubber I wouldn't worry about it. Tearing apart that case just to get that stuff out would be a big project, that front shaft and bearing are pressed in. The gears in that case are pretty darned big, nothing wimpy about it. I can't imagine that some bits of rubber are gonna cause any damage.
But if your tcase grenades next week because of crap inside, I'll deny ever writing this, this post will self-destruct.
As for the "chunks", I would get as much out as possible, maybe with a dental pick and a slim pair of tweezers. Dump a jug of gear lube in the case before you replace the seal so it will wash as much as possible out forward. Then as long as the chunks are just rubber I wouldn't worry about it. Tearing apart that case just to get that stuff out would be a big project, that front shaft and bearing are pressed in. The gears in that case are pretty darned big, nothing wimpy about it. I can't imagine that some bits of rubber are gonna cause any damage.
But if your tcase grenades next week because of crap inside, I'll deny ever writing this, this post will self-destruct.
