With the new truck purchase, i am trying to do a clean slate on the fluids. Dealer changed the oil and filter plus fuel filter, but I am wanting to change the front and rear diff fluids, along with the full service on the aisin transmission with filter. Shocking me, there seems to be very few places that carry these parts locally, unless its a dealer. I surely thought Mobil 3309 transmission fluid would be easily available - nope - can't seem to find it anywhere. Does anyone have a suggestion on what retailers carry this item? The normal parts stores don't seem to have it, well not on there site.

I did find that Napa carries the transmission fluid filter and gasket as a kit for the aisin for around 60 bucks

I also have a text into my amsoil dealer to see what he has in stock for the front and rear end lube sense no one seems to have a good suggestion for that either. I have that funny shimmy when towing and turning that everyone says you need to change rear end oil to solve that.