after i drive my truck around 15 miles or so pedel gets real touchy ,in other words you barely touch them and thy grab ,i was on a slight grade in neutral and the truck wouldnt even move unless i gave it gas,i parked the truck and you could smell the front brakes ,let cool for couple hours and pedal feels normal until drive a couple of ten miles, the front pads look new could it be the pads or the calipers ,i know these are aftermarket pads

 

you sound like a prime candidate for new calipers

 

I'd second that.

 

check your brake fluid, make sure you dont have too much. If thats fine then id say new calipers.

 

that or mabie you have a messed up master...guessing calipers that is a common symptom