dirteater4
New member
Then thats what I will do. The first seal made it to 191K. I can't imagine that I will see 400k miles with her, but who knows. Thanks for the response!
Replacing Transfer Case Output Shaft Oil Seals, a How-To for DIY'ers
- Thread starter BigFishAllDay
- Start date
dirteater4
New member
Advice for people without air tools: I drilled the divot out of the nut with a titanium bit. Then my 18v impact wrench took the nut off no problem. The drill bit didn't do any damage to the surrounding threads.
diverscale
Member
That is what I call a very well made DIY, and with all the added info's on the thread, wow. Keeping as future reference.
atalarico
Senior Member
Yeah, honestly, I've been discovering most threads are like that here. I've been on a ton of other forums throughout the decade(s), and T4R really takes the cake with the quality of write-ups, the actual reproducible and verifiable info that's given, and just overall willingness to help each other out.
So...we rule!
:banana:
/rant
A.Wilson013
New member
Just used this thread to address my leaking front output shaft. Went very well! After tax I paid $17.03 for the nut and seal at my local dealer.
As some others did, I used a 1/2" impact wrench to break the 30mm nut loose. I could not see ANY damage to the threads whatsoever and had no issues torquing the new nut down.
Mine must have been leaking for quite some time as I was unable to remove anywhere near a quart of oil from the t-case. Took almost exactly 1.1 quarts to fill it back up.
Thanks a ton, [MENTION=44220]BigFishAllDay[/MENTION]
As some others did, I used a 1/2" impact wrench to break the 30mm nut loose. I could not see ANY damage to the threads whatsoever and had no issues torquing the new nut down.
Mine must have been leaking for quite some time as I was unable to remove anywhere near a quart of oil from the t-case. Took almost exactly 1.1 quarts to fill it back up.
Thanks a ton, [MENTION=44220]BigFishAllDay[/MENTION]
FrankieJoe14
New member
SO I was able to do this today with our day off.
The instructions were perfect to a T. Even with someone who does not have much experience past oil changes this was pretty easy. Big thanks to BigFish.
Being in the northeast, I had a bit of rust on the underside. I was not able to get the zerk fitting cap off for the grease part of the install. I was able to just push the driveshaft about an inch in and rest it on the 3rd member. When i reinstalled i just hooked it back up.
Think its a big deal? Should i be looking for a new(er) front driveshaft that is not so rusted? I am assuming it has not been greased in years.
4high and 4low work great.
The instructions were perfect to a T. Even with someone who does not have much experience past oil changes this was pretty easy. Big thanks to BigFish.
Being in the northeast, I had a bit of rust on the underside. I was not able to get the zerk fitting cap off for the grease part of the install. I was able to just push the driveshaft about an inch in and rest it on the 3rd member. When i reinstalled i just hooked it back up.
Think its a big deal? Should i be looking for a new(er) front driveshaft that is not so rusted? I am assuming it has not been greased in years.
4high and 4low work great.
I replaced this seal 3 yrs ago and it started leaking again. Just like last time, I'm using the OEM seal. Upon closer inspection, it seems that the oil seal lip has slightly worn into the companion flange sealing surface and therefore the surface might be chewing up these seals.
I'm going to see how long this last, and if it leaks again in the near future I'll probably put an SKF Speedi-Sleeve on it to get a clean sealing surface. For future reference, the companion flange sealing shaft is 41 mm OD, so an SKF Speedi-Sleeve 99163 can be used.
I'm going to see how long this last, and if it leaks again in the near future I'll probably put an SKF Speedi-Sleeve on it to get a clean sealing surface. For future reference, the companion flange sealing shaft is 41 mm OD, so an SKF Speedi-Sleeve 99163 can be used.
sportscarfan
New member
Thanks [MENTION=44220]BigFishAllDay[/MENTION].
Just noticed the leak last week. Took care of it today. Amazon'd a Toyota seal.
I should pick up a seal puller tool. After trying to improvise with a few different things I ended up going screw-in-the-seal face to pull it out.
Just noticed the leak last week. Took care of it today. Amazon'd a Toyota seal.
I should pick up a seal puller tool. After trying to improvise with a few different things I ended up going screw-in-the-seal face to pull it out.
farmerjon
Senior Member
Thanks BFAD for this! This came right up when researching my issue - I have this with my front output on my '98. I knew what I was in for when I saw your name on the how-to, which meant I immediately felt better since there was fantastic documentation!
Hope you and your family are well!
Hope you and your family are well!
I got an oil change recently and noticed there was a slight leak in the transfer case.
Pic
My questions are:
1. Should I get the whole thing done per OPs 1st-3rd post?
Idk which one is front and rear lmao?
2. Does replacing these seals mess with the transmission at all?
I will go to the hi tech transmission shop my mechanic recommended me since he didn't wanna do this job and get a quote, I'm expecting this will be around $400-500, could be less if they agree I purchase the parts and they just charge for labor.
Pic
My questions are:
1. Should I get the whole thing done per OPs 1st-3rd post?
Idk which one is front and rear lmao?
2. Does replacing these seals mess with the transmission at all?
I will go to the hi tech transmission shop my mechanic recommended me since he didn't wanna do this job and get a quote, I'm expecting this will be around $400-500, could be less if they agree I purchase the parts and they just charge for labor.
mtbtim
Elite Member
Clean up the old oil mess off the bottom of the transfer case and keep an eye on it. That does not look like a bad leak. But, I would remove the fill plug and verify the level is good. On level ground, gear oil should be right at the bottom of the threads of the fill plug hole or up to 5mm below. If it needs some, top it off with 75w-90 gear oil. Or better yet, drain out the old gear oil and pump in some fresh gear oil. I recommend using some new drain plug and fill plug washers. You can pick them up at your local Toyota dealership parts department.
By the way, you never showed a picture of your front and rear output shafts on your transfer case. That's what this thread is about. Did you look to see if gear oil is leaking under the companion flanges the driveshafts bolt to?
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I dont have any real help on this, but if your looking at 4-500 in labor and maybe saving a few dollars by replacing seals, I would let shop supply seals. My reasoning is that most shops will not warranty jobs if they don't supply parts. Some will warranty their labor if can be proven their labor caused the issue or install work was faulty. However you can request that they use TOYOTA parts rather than aftermarket. One shop I used to deal with said they would only use dealer parts if owner supplied because people would bring in junk brand aftermarket.
New seals wont break the bank.
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I wasn't sure since I haven't had a chance to look at the diagram so I had a trusted transmission shop look at it and they said the issue was the output shaft seal thru the front drive shaft. That being said I allowed them to do the work with their parts (requested OEM parts if available) and it was like $230. I'll be picking it up today and they said they'll let me drive it for a few weeks then recheck.
Should I have them just do the rear output shaft seal as well?
Trying to get all the work done before my appointment to get the underbody cleaned/POR15d/Fluid filmed lol
mtbtim
Elite Member
Well, for that price, I wouldn't do the rear unless it was also leaking. I don't think they price gouging you but labor at shops is expensive. I'm guessing their labor rate is somewhere around $150/hour and they are billing you somewhere around 1.5 hours labor for the job plus the price of the seal.
RomanSchnobrich
Member
Can't say thanks enough for such a solid and thorough write up! I just ordered this seal and I'll be tackling this within the next few weeks. My 4Runner is my first car and it's slowly turning me into a "car guy". Write ups like this give me the confidence to do these kind of projects myself. Thanks man!
