My 2oo6 Silverado has 46k miles on it and the brake lines have been replaced with stainless steel lines (all) at 36k. New rear shoes, new front pads and calipers. Why front are dragging on?

did you do the work or did you take it somewhere ?

I put the pads and calipers on it. I bought it last October `16 and the stainless lines had been installed and new shoes in the back with one new wheel cylinder on drivers rear. The pedal was low and spongy so I bled it after driving it home a few hundred miles replacing all the bleeders. I had my friend put on the pads and helped him bleed the system until the pedal was high and solid. A few months later the right front caliper began sticking and I could smell the pad burning so I replaced it. A month later the left front caliper began sticking so I replaced that one. Both came from Auto zone with lifetime warranty. Brakes work ok now and pedal is high but not real solid. I had a 93 GMC and its brakes were much better. I made one hard stop with it due to an idiot running a stop sign and pulling in front of me and the brakes took a half mile or more to release completely..Whats wrong with them?

Did you replace the flex hoses?

No I did not change the hoses. I guess that's next. thnx

I'd say the calipers are junk