4x4 flushing

I have 56k miles on my 2016 4runner. How often should I get the 4x4 system flushed? No off roading or towing, just the 4 seasons in Michigan. Thank you all.

 

You mean draining and filling the differential fluid?

 

Yes. Dealership was charging $800, i said no thx.

 

Do it yourself, it's easier than changing your oil.

 

The change intervals to change your diff and transfer case fluids is in your owners manual. I changed mine every 30K or sooner in the diffs if I encounter a lot of water. Reminds me I need to get the diff breathers moved up higher.

 

Got the parts to
Relocate my rear breather .. several months ago... waiting on time to change the rear diff earl