Questions on servicing 2015 trd sport (differentials, trans, transfer case)

Just got a 2015 trd sport 6 spd m/t, wanting to service all fluids.

Front differential I see 1.59 qt I’m gonna use Mobile 1 75w90. Do I drain all and add that much back or just add as much back as comes out. And same question for rear diff and transfer case.



for trans manual says Gl-3 (GL-4) so I assume it could use either ratings, I was gonna use redline MT-90. But it has two quantities 1.9 qt and 2.3qt for 4wd models. Explain please. Pics for reference. Thanks in advanced and any tips.

 

Front/rear dif and transfer case. I park the truck on even ground. Drain from drain plug. The fill at fill port. Fill until the fluid starts to back flow.
Caution: Before you remove the drain plug insure you can remove the fill plug.

 

Congrats on finding a nice 2015 truck and welcome to TW.

The capacity in the differentials and manual transmission is fill to spill.

The capacity listed for the manual transmission fluids is different due to a 5 speed manual with the 2.7L engine and a 6 speed manual with the 4.0L V6.

Don’t forget about the drain plug crush washers.

For your reference.

https://www.tacomaworld.com/threads/front-diff-and-transfer-case-oil-change-howto.147631/

https://www.tacomaworld.com/threads/changing-differential-fluid-a-step-by-step-how-to.24545/