I'm almost to 30,000 and the service manual list a number of things to do. I have also looked at the haynes manual and it lists more things that should be done . There are a few things i'm not sure if i should do but it says its a good idea in the haynes manual . obviously fluids air filter yada yada yada will get done.

should I include the follwing things for a 30,000 mile tune up. I drive offroad with heavy dust and dialy driver in LA traffic.

service battery ? stock is maintinance free and i don't need to do anything ?

check/replace pcv valve

lubricate caliper friction points

check hub lock, spindle , and front wheel bearing lubrication

adjust rear breaks ? does this mean go in reverse and slam on the break to tighten the ratchet?

flush cooling system ? should i really go to the factory recomendation which i think was 100,000 or something like that .

replace fuel filter

lubricate driveshaft slip yokes

Lubricate right front driveshaft slip yoke

 

It looks reasonable to me, other than the battery should be fine, and you probably don't need to concern yourself with the rear brakes unless you suspect a problem there.

You know the drill about changing the motor oil and replacing the filters (air/fuel/oil).

Cleaning the MAF sensor might be a good idea on account of the dusty/severe duty conditions.

Every 25K or so I like to take a large turkey baster and suck some of the PS fluid and brake fluid out of their reservoirs and top them off with fresh stuff.

 

the hub lock spindle and front wheel bearing lubrication looks difficult .

I'm also not sure what the caliper friction point is and the haynes manual doesn't really show a picture .

any idea how much a MAF might cost ? I was thinking thats something that could easily be replaced on the trail ? maybe if i don't replace it i should just get one to keep with the emergency stuff ? i heard you can clean a MAF sensor , like if it gets some k&n oil on it .

 

They are often referred to as "slide pins" and they allow the calipers to slide back and forth while they are squeezing and releasing the rotors. You need to unbolt the calipers from the brackets to get at them. You want to use a good synthetic grease on the slide pines after cleaning them up on a wire wheel (if necessary).
Just clean it every now and then. A dirty MAF will not cause a sudden shutdown out in the woods, so don't sweat it. It's not the kind of thing you need to have on hand.