Differential Fluid Change DIY Guide (Front & Rear Diff) - for 2025+ 4Runner 6th gen

[FloridaPhotog]

Very detailed procedure, thank you. I wonder what a dealer would charge to change front and rear? I am getting to the point of not wanting to do my own vehicle maintenance

I asked my dealership here in Florida yesterday. It was $199 per differential. They also said they use 75w90 , so we know it isn’t Toyota branded.

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[Gerardo]

This is so helpful, thank you so much @Henry!

 

[jackburton]

great write up!

It's strange that Amsoil's website doesn't list any fluids for the Transfer Case and Differential.

https://www.amsoil.com/lookup/auto-...nner/2-4l-4-cyl-engine-code-t24a-fts-2-turbo/

 

[MStarmer]

Anyone ever check the levels when you first get the vehicle? This is my 4th 4Runner and I always make it a habit to double check the diff's and transfer case. Just got done and the rear was pretty light I think I put about a 1/3rd of a quart in, front was a little better. Transfer case was almost up the top but still took a pretty good pump to get it to the fill plug. I used Redline 75/85 for the diffs and MT-LV for the transfer case. I'll double check the trans fluid probably on the weekend if my OBDII reader will pick up the temp. I only use factory WS for that one. Not that I don't trust Toyota, but I don't trust anyone.

 

[kekecarioca]

I did my rear Diff oil change last week @ 30K and to be honest the oil still looked "pretty" good. Of course it had metal sparkles and sludge on the plug but it still had quite a nice gold tone to it.

Note I have a TH that holds an extra quart in there and did minimal towing and hard off-roading a few times.

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