Diff and transfer case fluids
brake fluid
PS fluid
coolant flush
drain and refill transmission fluid
timing belt, water pump and thermostat
replace LBJ
valve cover gasket if they are leaking
air filter
spark plugs
Any maintenance records? Water Pump and Timing belt every 90k, so if you did it at 180k, then it's not due until 270k. This list above is good if you haven't maintained the rig, but here are my comments:
Diff and transfer case fluids - every 30k
brake fluid - every 2 years
PS fluid - If dirty, otherwise I do it every 5 years (not sure if this is right)
coolant flush - I likie to do this every 100k miles
drain and refill transmission fluid - I'd drop the pan and change the filter and check the magnets for shavings. I'd also add an external trans cooler.
timing belt, water pump and thermostat - per previous comment
replace LBJ - If showing signs of wear
valve cover gasket if they are leaking - agree
air filter - If dirty
spark plugs - This is a 60k mile interval for me
I would add -
Lubricate drive shafts and all suspension bushings
Check condition of accessory belts
How old is your battery?
How is your starter?
Last comment - at this mileage I find it more difficult to keep track of maintence in my head, so I recommend keeping a log and sticking to the regular maintenance intervals.
