2006 Tundra Rear Diff 18,500 miles

[GunnyE7T]

This is the report for my 2006 Tundra of the factory rear diff oil at 18,500 miles.

I changed over to Amsoil 75W90 SVT w/ Slip Lock Additive.

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[Tempest]

I think this shows a very good reason to dump the factory fill about this time.

 

[INDYMAC]

This sample looks fine for break-in gear oil. My preference for changing out OEM fill is 5-7K miles, knowing what I know now though. How did the drain plug look? Any large chunks?
I think your choice of AMSOIL 75W110 SVT is a great choice. That will be mine in the future too for my Tundra. Here is a recent sample UOA that I took:

http://theoildrop.server101.com/forums/s...ge=3#Post854629

 

[GunnyE7T]

Drain plug had a few small particles on it.

No large chunks.

The oil was grey in color.

Very easy to change and fill.

I used the hand pump that Amsoil sells.

 

[mikeg5]

dont they have a drain plugs on the diffs? i know the tacomas and older tundras did.. its even easier for it to come out when its hot

 

[GunnyE7T]

There are drain plugs.

I used the Amsoil hand pump to pump the new oil directly out of the quart bottles into the fill hole of the diff.

 

[mikeg5]

oh ok i was thinking ----? lol thanks for the correction and good luck with your truck... just remember that sometimes those trannies can be picky so do a drain and fill every 10-20k miles pending on how much you haul and or city driving and you will never ever need a flush..