Ok mates. As of today, I'm the proud owner of a 1999 Patrol GR RD28TD manual transmission. The guy I bought it from kept it in good condition, but nothing spectacular. I'be been reading through the forums and while there are a lot of tweaks and mods I want to do down the road, I need some advice on what to do right now.

What are the things I need to do to the engine, drivetrain, etc right away? What would you recommend changing, checking, tweaking, etc. if you were the new owner of this vehicle with limited service history?

Thanks in advance.