Brakes Pulling??

[Land_Surveyor]

I have a 1996 F-350 with a Dana 60. My drivers side caliper would not retract but I got home with no trouble. I replaced both front calipers, pads, rubber hoses along with the cross line that was in bad shape. Worked fine for 1k to 2k miles no pull, no squeal and no grabing. Just recently I have a chirp (best way to explain the sound) in the drivers side when I go around a left hand turn and sometimes straight. I have checked the earing nuts and they are tight. At higher speeds when I step on the brake the truck vees to the right, and no it is not the rear brakes I replaced the shoes and the hardware on the inside(springs and retainers) My question is what is causing this out of the blue like this. I should not be suspension since it only appears when I step on the brake hard or softly.

[pjwoolw]

Possibly oil or some kind of fluid has soaked the left side pads. Power steering fluid?

[Land_Surveyor]

I have checked the pads and surrounding area, no fluid.