Transfer Case and F/R Differentials changed last 67,000miles

[hyperthread]

The transfer case and front / rear differential fluids of my 2004 4Runner V8 limited were changed last 67,000. My car is now 105,000 miles, I don't do towing and off-loading. Should I change this now at this mileage?

Thanks!

 

[TRDCal]

In my opinon since you went to 67k before your first fluid change you could probably wait till 120-130k to do it again especially if you don't tow or offroad.

 

[hyperthread]

In my opinon since you went to 67k before your first fluid change you could probably wait till 120-130k to do it again especially if you don't tow or offroad.

Thanks TRDCal. The reason why I asked this is I tested my 4LO yesterday. I am hearing some whining noise. The 4HI is OK, uber quiet. Is this is actually an issue with the transfer case or differentials?

 

[4RunnerFan]

I believe the scheduled service interval for differentials is 30k miles non-towing, 15k miles if towing. Xfer case every 30k miles.

 

[ClockWork]

If you used dino oil @67k change it for M1 or equivalent synthetic. If you used synthetic, you're good for at least 60k.

Changing fluid is cheap and can do nothing but help.

 

[hyperthread]

If you used dino oil @67k change it for M1 or equivalent synthetic. If you used synthetic, you're good for at least 60k.

Changing fluid is cheap and can do nothing but help.

Hello ClockWork,
It was previously changed on the dealership so this means they used dino oil?

 

[ClockWork]

Hello ClockWork,
It was previously changed on the dealership so this means they used dino oil?

Most likely.