I have an 02 lariat screw 4x4 and i have an interminent "clicking" noise coming from my left front. i took off the wheel yesterday and didnt find anything rubbing or grinding but when i drive by those sound walls on the interstate i hear the noise and when i drive on gravel roads it is more apparent. i did the front brakes a while ago still have plenty of pad left its just driving me nuts about the noise and the truck stops fine please help!!!!!!!

 

Maybe one of the CV axles on the outer shaft has went dry and clicking.

 

if so how would i add lube?

 

Check ball joints and tie rod ends, CV joints will really only make noise when turning.

 

already checked they are ok i only have 47xxx miles

 

could it be the anti rattle clip in the caliper?

 

Could it be something in the tire itself? nail,rock

 

I had the same exact problem once and tore into and inspected my front end several times. What I failed to look at was the tire it self had a piece of metal stuck in the thickest part of the rubber on the inside of the tire which made it hard to spot, and sticking out about 3/8''. But on the other hand I don't remember going down a dirt road and hearing it before finding the metal.
If it's a constant clicking I really believe it's in or has something to do with the wheel, maybe something stuck in the wheel or even something stuck in the caliper.

 

check the parking brake inside the rear discs, sometimes the pad shatters and all the little ceramic pieces get stuck on the inside of the disc and make all sorts of awful noises - pretty easy to replace

 

i do have the factory good years on it and they are cupped a little but the oem tires have 48xxx miles on them w/ decent tread left i think i have a rock embeded in the tread ill check that when i get home.