best fluid for my Tundra differentials?

At 10k, I am going to replace the oil in my front and rear
differentials on my new Tundra. What is the absolute consensus best to
use? I am switching to sythetic engine oil at 5 k miles here in a few
weeks and I want to do whatever's best for the diff's since I plan to
drive this thing forever. Also, how about the xfer case? Is it, or
parts of it, getting any use in normal 2wd driving? If so, what's the
best fluid to use in it; if not, i'll wait a while.

Thanks!

-jeff

On 16 May 2006 00:18:59 -0700, "Jeff Olsen" <handywired@earthlink.net>
wrote:
[color=blue]
>At 10k, I am going to replace the oil in my front and rear
>differentials on my new Tundra. What is the absolute consensus best to
>use? I am switching to sythetic engine oil at 5 k miles here in a few
>weeks and I want to do whatever's best for the diff's since I plan to
>drive this thing forever. Also, how about the xfer case? Is it, or
>parts of it, getting any use in normal 2wd driving? If so, what's the
>best fluid to use in it; if not, i'll wait a while.
>
>Thanks!
>
>-jeff[/color]


Not sure on Tcase fluid type but in axle since you have gone SYN in
engine, try 75w90 SYN and not 75w140 SYN. YOu want to keep it a little
lighter for max MPG and 75w90 or 80w90 is spec'd for it anyway.
-----------------
The SnoMan
[url]www.thesnoman.com[/url]

Jeff Olsen wrote:[color=blue]
> At 10k, I am going to replace the oil in my front and rear
> differentials on my new Tundra. What is the absolute consensus best to
> use? I am switching to sythetic engine oil at 5 k miles here in a few
> weeks and I want to do whatever's best for the diff's since I plan to
> drive this thing forever. Also, how about the xfer case? Is it, or
> parts of it, getting any use in normal 2wd driving? If so, what's the
> best fluid to use in it; if not, i'll wait a while.
>
> Thanks!
>
> -jeff
>[/color]
Your choice of any top quality synthetic 75W-90 differential gear
oil in all three gear cases. You will like Mobil 1, Red Line,
Amsoil, Royal Purple.


Ken