So its time to do a bit of servicing before i track my NC

Need some suggestions on Engine oil, transmission oil and diff oil.
Engine oil i was looking at either 5w40 or 0w40... but looking for a recommendation on a product
Transmission. Have no idea what i should be looking for. All i know is that the capacity for the Transmission oil is 2.1L?
Diff oil capacity is 0.13L? and like transmission, i dont have a clue either

Any recommendations for products of the 3 different oils?
Thanks
Trev