I had to do a hard stop from about 25 mph, i had just replaced the front rotors 2 weeks earlier, after the hard stop a couple days later i heard a rumble strip noise obove 30mph, after a couple more days the sound is starting at 5mph and gets worse as speed progresses, also new tires on 10k. 2007 w/ 138k

Thanks Steven

 

Hub/Bearings probably.

 

I have to wonder how many miles you have on your buggy, I'm betting its your front wheel bearings. Well at least one of them, on my car the drivers side started making noise so I replaced them both since they had equal miles on them and I figured if one went now it would probably just be a short time before the other went.

 

I concur with Donbrew but take the brake pads out and inspect them clean them and the rotors just to be sure. with 138,000 I'd bet on the hub bearing

 

Is it possible that you locked up the tires and flat spotted them?