What's the right oil to use? I have heard 75w90 is what I need?
Is there anything else I should look out for because I know they have specifucations like gl-4 and gl-5, which do I need and is it the same for the gearbox as the transfer and the diff?
Any recommendations on a decent but cheep oil to use? I don't want to be spending hundreds but I want to get the right stuff in it.