High water from flooding.

I wasn't sure if the 3rd gens apply to the rear diff breather. I drove in water that was 3/4 up my wheel. I have 16 sr5 dclb 4x4 stock everything. I was reading that the front diff has a 2 way valve that doesn't suck up water. When should i service if I need to service.

 

If you're worried about it, switch it out. I would

 

https://www.tacomaworld.com/threads/rear-diff-breather.431400/

Change your fluid if you're worried. If you're not, then change it when it calls for it.

 

Even with check valve breathers diffs will take on some water. Especially warm differentials. The rapid cooling of the housing sucks water in and was responsible for a lot of boat docking trucks differential failures.

That said, you hardly drove through much water and its likely a one time deal. I personally wouldn't stress about it.

 

Alright thanks guys for your input.

 

Rear diff breather is really easy to relocate and the fluid is super easy and pretty inexpensive to change.

 

Is there a tutorial for the fluid change? Will it void my warranty if I change it my self?

 

No tutorial needed. Drain plug on bottom, fill plug half way up back side. Loosen fill plug first, remove drain plug n empty it. Replace drain plug and fill it with 75w90 synthetic(3.5ish qt on mine) until it cant take more n starts coming out the fill. Replace fill plug n call it a day. Grab a bit of stuff to do the diff breather relocate and you can do that while it drains

 

Though i didnt have mud in mine like i suspected i would, there was a ton of crud on the magnetic drain plug so i was happy i did it. Think 4 qt of lucas 75w90 was like 47 bucks. Good insurance

 

You guys use a pump to pump in the new fluid?? One of those hand held deals .... I've used them for lower units on boat motors less mess!!

I bought some gear oil from Toyota .. it was like $25/qt... not cheap.

How much do we need for the front and rear diffs??

How about the transfer case? Same gear oil?