For me:
Spark Plugs: 30k miles, easiest plug changes ever.
Throttle Body Cleaning: not sure, i know theres three of them though; one in the back seems to be fun to get.
Brake Flush: whenever i change the front/rear pads out.
Front and Rear Diff fluid (front seems harder than the rear?): 50k for both, fronts a pia but not big deal with a pump. Might as well throw on a rear doff cover to make changes easier.
Coolant Flush: 100k, 150k for me since i swapped the thermostat at 50k
Transfer Case: 10k, fluid is about dark red, at 15k or more it starts turning black. Easy to do, need a pump like the front diff
Transmission flush: i dont flush but i just empty and refill every 30k. I changed the filter too first go around then just fluid from there.
Filters every 10k, oil every 2.5k.
Super helpful thank you. Couple of other quick questions.
Plugs - Did you use SP596 ? I want to keep a spare coil on also. Can anyone confirm DG584 as part numbers for each ? I need a different spark plug socket besides the standard Craftsman rubber bushing one. Are there any recommendations for a good one-piece magnetic that is the correct length for our trucks?
Throttle body - I will try and take some pics and post back what it looks like.
Brake flush - Would I need to put the truck into brake service mode? Is it Dot 4? Any specific brand? I don't mind getting OEM MotorCraft but where can I get it besides the rip-off Ford parts house? Can you recommend a brake
caliper spreader so I can do pads quickly and easily? A C-Clamp works for jeeps but I'd rather have a nice tool. I do brakes on other vehicles too.
Diff Fluids - Same fluid question (where else besides the dealer?). Are you just talking about a basic
diff pump from HF? Both covers look like they need to be removed. An aftermarket looks good for the rear but I am not sure one could fit on the front.
Coolant Flush - Same fluid question (where else besides the dealer?). I have an
AirLift for coolant. I am hoping this could maybe fit in the overfill tank since we don't have a radiator neck cap?
Transfer Case - Is the same type of pump or do you recommend something different? Just a simple drain and fill with the correct amount of fluid?
Transmission - I worded that incorrectly. That should be drained and refilled with a new filter. Is this dropping the pan and changing the filter or is it a drain and refill with an inline filter?
A ton of questions here but if anyone else is reading this the main questions are about better tools for these jobs along with where to get fluids for a good price.