If you want the overkill list...
Beyond engine, transmission, transfer case, diffs, and swivels, Check:
Brakes and brake fluid. Make sure you don't have some weird leak somewhere.
Clutch hydraulics. Same.
Re-torque drive flanges (35 ft-lb, If memory serves, it is a spec in the manual) and lug nuts. Hope to ward off leaking hub seals. And if you feel frosty enough, check wheel bearings as well.
Steering box and relay fluid
Grease driveshafts (aka, propshafts)
I'd drain and get new, clean fuel. That'll solve a lot of problems and its easy on a series. Gasoline and diesel will go bad or grow stuff or items will magically migrate to the fuel tank. Pick one. Also if you see a bunch of rust come out of the tank, that'll let you know you need to do something there. Also if you see junk coming out of the fuel tank, go ahead and clean out your fuel lines.
Look in the carb bowl. Make sure there isn't junk in there.
After start up, check battery voltage. Make sure the alternator is working. New battery won't work long if it ain't getting replenished.
Clean connections to starter, because winter.
Check all lights for burned out bulbs. Adjust doors if you happen to get free time.
Should be good to go.
