pulling to the right while breaking

Im working in an 04 F-350 reg cab dually, it pulls to the right when you are braking and when you let go of the wheel it turns to the right while on the brakes. so far i have done pads and rotors in the rear and loaded calipers upfront and turned the rotors, im gettng good fluid out of the bleeder when bleeding the brakes, i know the next thing is most likely the left side brake hose it looks fine no cracks and its not swolen anywhere. does anyone have anything else they would like to add to the list of things to check?

usually frozen caliper pins will make a vehicle do that, but seeing as that you put loaded calipers on it...that wouldn't be the case i guess. Does it only do it only when braking? I had both front axle U-joints frozen on my truck and it would make it pull both right and left when driving and braking. Just wonderin if it could be a frozen right U-joint.