99 Ranger Brake Problems

Ok so here is the long story. My pads were almost gone and because I work at a NAPA it was $15 more expensive per side to do calipers with pads and the truck had 100k miles. So I had both sides replace and the rotors turned. The next few weeks I noticed that my truck began to pull to the right, so then I went and had the hoses replace, the hoses looked like they had been put on the wrong side from the factor because they were being stretch every time I turned the wheel, and I also had the rear brakes replaced because the wheel bearings in the rear were making some noise. Now that everything is new and few weeks later it started doing the same thing. So then I brought it back in cleaned up the caliper slides and everything put it back together and it drove fine for about a week then the same thing. So I defected out the caliper on the right side thinking I got a bad caliper and that did not fix the problem. Everything up to the metal brake lines on both sides is brand new. I unplugged the ABS sensor and it seemed to fix the problem but I don't think it did. I think I was in one of its good moods. Any who, the ABS light is not on and it does work, because when I unplugged the ABS sensor the light came on. The ABS does work but it does not seem to work that great. When I go to stop at a stop light where there is a cross walk, if wet outside, with minor braking it will skid over the cross walk and lock the brakes up until the tires get to regular pavement then they are fine. The only four things left to replace on that truck is the ABS sensor, ABS brain box, master cylinder, and the brake booster. If anyone could help me it would truly and greatly appreciated. I don't know what to do any more. :(

You did everything I would guess that could be the problem. Did you bleed the brake lines to make sure you dont have air somewhere in the system, also make sure the front rubber lines are'nt kinking somehow. have another person turn the wheels both ways while you visually inspect. other than that I have no other ideas

Yep I bleed both sides like three or four times. The reason I originally replaced the brake lines was because when I would turn the wheels would actually lock up because the brake lines were being stretched. This was because they were on the wrong side. Thanks for the help so far if you or anyone else has any more ideas I really appreciate it.