[BLACKOUT FX4]

my truck has been making weird noise up front for the past few weeks. at first i thought it was the brakes wearing down, then i thought it could be my 2.5" leveling kit was wearing on some of the parts like my ball joints and they were squeaking and grinding. now i think it may be my 4wd..
the most recent noise sounds like a Ratchet clicking when i'm driving but when i put it in 4wd it stops. the noise it was making a few weeks ago was like the pads on my brakes were starting to wear down and the metal on the pads were starting to scrape the rotors.
my truck has 52k miles and i have a 75k/5 yr Ford extended warranty but i dont know what they will say about my over sized wheels and my 2.5" leveling kit. has anyone else had these weird noises or know what it could be? if i have to return my truck to stock before i bring it in to Ford, i will. it will suck but i dont want them to say my warranty is void..

any ideas?