Noob trying to change his diff and x case oil question

[hgill]

the weather has finally gotten good enough to work on the truck.

I just finished doing the transfer case but had a question on which skid plate to remove to get to the front differential?

The rear seems very accessible as I had removed the spare with everyone's recommendation.

 

[JB.]

...had a question on which skid plate to remove to get to the front differential?

The one behind the front skid.

 

[hgill]

The one behind the front skid.

Thanks just got to it.

 

[Sonicpilz]

What/where is a cabin filter?

 

[00328]

Cabin filter is behind the glove box. You have to disconnect the little arm on the right side of the glove box(one screw). Squeeze in the sides of the glove box and it will drop down. You will see a long thin door, it's behind that.
Oh, and you can get a cabin filter from O'reillys for 7.99.

 

[Sonicpilz]

I found it. Opened my mouth before I opened my web browser lol. I pulled mine out a few minutes ago while I was here at work. Pretty dirty looks like it might be the factory filter Im not sure. Anyway I used it as a template and cut out a pleated 1 inch filter here at work. Looks great and it was free. Great info I've never heard of a car having a cabin filter.

 

[hgill]

End Result: with yesterday and today, I have completed my first ever oil change, front and rear differential and transfer case oil change.

First off, thank you everyone for the great suggestions that came in very handy

1. Making sure to open fill plug before drain plug.
2. Removing the spare tire (gives you ton of space to work on the rear- didn't have to lift the rear whatsoever).
3. Buying the pump for the filling process (came in very handy as it speed up the process quite a bit. Though I would not use this particular pump again, it was a bit of a pain to use, but def better then not having one).
4. Also you have to remove the plate behind the front skid plate to reach the front differential.

Few additional things that I ran into or worked for me.

1. I did raise the front onto two jack stands which really helped make it easy to work on the front differential and transfer case.

2. When I removed my transfer case fill plug, I wasn't prepared for oil to drip out of it as much as it did (probably due to me lifting the front slightly to work on the front and transfer) . This only happened with the transfer case, so probably a good idea to have a drain pan under it when removing the fill plug on transfer.

3. The pump I had, the bottom pipe that went into bottle did not reach the bottom of bottle, so I cut one bottle into half and then just used the bottom portion as a refill cup to pump out of for the remaining bottles. (Like i said, I didn't care too much for this particular pump, next time will get better pump).

Once again thanks to everyone on this forum for their help. I probably spend the same amount of money I would have paid someone to do this on tools, but it was all worth it as I will use them quite a bit in the future. So with the info provided, I was able to accomplish the following for the very first time ever.

1. Oil change
2. Replace air filter and cabin filter.
3. Front differential oil
4. Rear differential oil
5. Transfer case oil

If a noob like me can do it (who had no idea where any of the items were), then anyone can.

 

[BlackWorksInc]

That's a factory filter from the looks of it, and honestly? Its dirty but I see so much worse at work... Blacker than tar and full of god knows what!

A lot of modern cars have cabin air filters, but often people never change them or in some cases they were never installed when sold.

 

[00328]

Yes it is fine. My 08 V6 requires LS additive in the tcase only the rear diff is an open diff with no additive needed. The Mobil1 LS comes with the additive in it. Works fine.

I'm curious as to why your tcase would need a LS additive. Haven't heard anyone else state that before.

 

[Burt]

I'm curious as to why your tcase would need a LS additive. Haven't heard anyone else state that before.

Same here, this is news to me? Everywhere I check, documents do not indicate a LS lube.

 

[RVFIXERGUY]

Great info Guy's, I was going to change my diff. & transfer case to. Had no clue until reading this.
One question is where is propeller shaft that needs greased?

 

[hgill]

Great info Guy's, I was going to change my diff. & transfer case to. Had no clue until reading this.
One question is where is propeller shaft that needs greased?

here is a link discussing that. I will be working on that next weekend as well.

http://www.toyota-4runner.org/maintenance/28414-07-v8-4x4-zerk-fitting-pics.html

 

[4RunnerFan]

Great info Guy's, I was going to change my diff. & transfer case to. Had no clue until reading this.
One question is where is propeller shaft that needs greased?

I also found this thread informative (thanks All!). Here's something on the forum about the propeller shaft (actually, it's the drive shaft):
http://www.toyota-4runner.org/maintenance/13234-propeller-shaft-maint.html

 

[Doozi]

Yes it is fine. My 08 V6 requires LS additive in the tcase only the rear diff is an open diff with no additive needed. The Mobil1 LS comes with the additive in it. Works fine.

I've never heard of or read anything about requiring an additive in the transfer case of a Gen4 4Runner. The transfer case is a Torsen-style differential which means it uses gears instead of the more common clutch pack limited slip. The clutch pack type requires the additive which is a friction modifier and allows the clutch to work properly. I've also never heard of a clutch-type LSD being used in a center differential application.

Maybe someone else with more experience can back this up.


Sent from Doozi's iPhone using Tapatalk!

 

[JB.]

I've never heard of or read anything about requiring an additive in the transfer case of a Gen4 4Runner. The transfer case is a Torsen-style differential which means it uses gears instead of the more common clutch pack limited slip. The clutch pack type requires the additive which is a friction modifier and allows the clutch to work properly. I've also never heard of a clutch-type LSD being used in a center differential application.

Maybe someone else with more experience can back this up.

I hadn't seen that post but you are correct, no additive required, and I've never heard of a conventional LSD being used in a center application either.

 

[RVFIXERGUY]

NEWBIE QUESTION
I'M going to change rear diff. fluid and transfer case.
My question is how important is it to change front diff. fluid on V6 models since the front diff. is only used when 4WD is engaged..?????????

I know V8 full time units are always turning. This got Me thinking when I was lubing drive shaft and spun front drive shaft to access zerk fitting. If front diff. is not spinning all the time how likely is it that it needs changed. Seems much harder to access with skid plates. Not that I'M whining its just super easy to see rear diff. and transfer case.

To be honest in 25 years I have never ever changed diff. fluid in any of the past 20 or so cars I have owned..

 

[mrpanic7]

End Result: with yesterday and today, I have completed my first ever oil change, front and rear differential and transfer case oil change.

First off, thank you everyone for the great suggestions that came in very handy

1. Making sure to open fill plug before drain plug.
2. Removing the spare tire (gives you ton of space to work on the rear- didn't have to lift the rear whatsoever).
3. Buying the pump for the filling process (came in very handy as it speed up the process quite a bit. Though I would not use this particular pump again, it was a bit of a pain to use, but def better then not having one).
4. Also you have to remove the plate behind the front skid plate to reach the front differential.

Few additional things that I ran into or worked for me.

1. I did raise the front onto two jack stands which really helped make it easy to work on the front differential and transfer case.

2. When I removed my transfer case fill plug, I wasn't prepared for oil to drip out of it as much as it did (probably due to me lifting the front slightly to work on the front and transfer) . This only happened with the transfer case, so probably a good idea to have a drain pan under it when removing the fill plug on transfer.

3. The pump I had, the bottom pipe that went into bottle did not reach the bottom of bottle, so I cut one bottle into half and then just used the bottom portion as a refill cup to pump out of for the remaining bottles. (Like i said, I didn't care too much for this particular pump, next time will get better pump).

Once again thanks to everyone on this forum for their help. I probably spend the same amount of money I would have paid someone to do this on tools, but it was all worth it as I will use them quite a bit in the future. So with the info provided, I was able to accomplish the following for the very first time ever.

1. Oil change
2. Replace air filter and cabin filter.
3. Front differential oil
4. Rear differential oil
5. Transfer case oil

If a noob like me can do it (who had no idea where any of the items were), then anyone can.

Not to sound like a total noob, but all we have to do for this is treat all 3 T-cases as an oil change? drain the old and fill with new? Just want to have good idea as to whats ahead when i do mine. Thanks

 

[JB.]

Just want to have good idea as to whats ahead when i do mine. Thanks

http://www.toyota-4runner.org/maint...ntial-transfer-case-fluids-pics-included.html

 

[tobenisstinky]

Diff should be labeled

I'm bout to change the fluids in my diffs soon as well.... can somone please confirm that you DO NOT need to add an additive.
I read before someone changed their rear diff oil, and did not add the additive and had some major issues after.

Your diff should have a label on it according to the attached TSB

 

[94toy22re]

I changed all three at 130k miles on my 07 v8, the fluid in the front diff and transfer case looked brand new but the rear diff was black, so if you don't have the money or time to do everything just get rear done!


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