while installing my rear strutmasters kit i noticed a leak in 2 places...1 seems to be left valve cover gasket leaking oil... and 2nd im not sure i think its the transfer case leaking and i wonder if this is common or maybe my bumpy ride did this ?

the tire/wheel you see in the pictures its the front left tire....

if someone can please help me with parts that i may need to fix this leak is it a gasket or seal or something ?

also i know i may looose some oil doing this repair if i am correct i need either mobil 75w90 oil or 80w90 ?

thanks

 

that's the transfer case leak, its relatively common. keep it topped off until you can fix the leak.
The leak is on the O-ring where the black box goes into the transfer case.
if you don't fix it or let the fluid get low, you will break the transfer case eventually, I bought mine with this issue and the transfer case was shot it would clunk crazy loud on acceleration.
I swapped in a newer transfer case, but if yours isn't making any loud noises and driving fine, then just replace your o-ring and refill it and it should be good to go.

I can't remember if its 75w or 80w but any fluid in there is better than no fluid for the time being.
a bunch of fluid is going to come out and its a delicate process to remove and reinsert that black box (referring to shortcut method without opening the whole case).
I would drain it before doing it, and then replace all the fluid with some new fluid, consider it a transfer case service.
there is a couple threads on fixing it, it can be expensive at the dealer but if you DIY it can be done for alot less especially the quick way.
do some research on it but its good you caught it before anything bad happened.

 

I wonder if it is the same fluid I just swapped in mine? Expensive fluid.

It was definitely very thin...

 

by expensive do u mean 10.99 a quart ? Thats not bad for as long as it lasts and my truck has 225k i bet if it was ever changed more then once

 

No... Amsoil wouldn't offer up an equivalent so used OEM at over $50/quart. 470 might use something else.



https://www.clublexus.com/forums/gx-...id-change.html

 

You can use any good-quality gear lube for this, as long as it meets the specs. I believe my dealer uses Castrol.

Chip H.

 

Amsoil 75w-90 severe gear

 

I used Mobil1 75W-90, smooth as butter.

 

I used that in my front and rear diff. This Toyota straight 75W I am using in TC was noticeably thinner than the Amsoil. Almost like an AT fluid.

 

Anyone in columbus OHIO area that has tackled this or has experience in this job and would like to help me take care of this leak ?

 

I used royal purple cause racecar!!

 

How many quarts would you need to change all of the transfer case fluid? Does this also go in front and rear differential?
I got the front and rear differential fluid changed by my Toyota dealer - not sure if they also changed the transfer case fluid as part of this service.

 

Front 3 pints
rear 6.6 pints
transfer case 3 pints

 

I get a little green looking fluid on the very rear screw when i am under mine, is that the same leak? the screw in his pics would be the far left 1

 

Are you sure that isn't some coolant?