Front right break locking

[Stomis]

OK so a while back I had a landscaper drop a big green barrel infront of me doing 65mph down a highway here. Nothing seemed to be wrong until a few days later I noticed my front right pulling alittle when I would brake. I left it alone due to lack of free time and delt with it.

Well I let the truck sit for about 2 days while I was driving around my dads extra car and now the front right brake seems to be locking up. Its really odd because you hit the brake a little and it works fine. If you give it more than a 1/4 pedal then the front right just grabs and completely locks up.

I pulled the wheel today (all I had time to do) to look at it with my dad and we both see nothing wrong. I'm going to yank my caliper tomorrow and make sure the problem isnt there.

Any ideas on where I should go from there or whats going on?

 

[Stomis]

Bueller?

 

[Oilbrnr]

I'd inspect the brake lines in the front circuit. One might have got bent/kinked.

 

[Brodie]

If there is nothing kinked/bend/broken/twisted ect, I'd say that when you really romped on your brakes you trashed the inside of your brake piston. (Guessing that there is something for follow-up/resistance. New loaded calipers are about 35 bux at autozone.