Great choice in the NAPA Platinum filter (Wix made) that is a good 5000-10,000 mile filter. Great choice with the Amsoil front and rear diff stuff, I'm going to do mine at 20,000 miles. Good choice also with the transfer case fulid change but even there I'd likely use Amsoil but no worries. If you have the money and time, I'd also change out the power steering fluid, not very many miles on it, but get a good clean baseline on it anyway. (assuming you do have power steering fluid and it's not electric) Flush the tranny fluid every 30,000 miles too. The flush will clean the filter/screen.