ATF 4 for the t-case is at canadian tire, I think walmart has a better selection of gear oil though, I'm going to try the Castrol Hypoy C it says you don't need to add extra friction modifier. If anyone has tried this and found you do need it please chime in.
I think there are some other places to get the special lube for the trans. but Canadian Tire isn't one of them. Royal Purple (Mopac). I found it easier to go to the dealership to get it.