Problems with front brakes on 02 F-250?

I need the prop. method to open the calipers to replace pads. I am not sure how the anti-lock brake system effects moving the pistons back in|||Get yourself a piston caliper tool, about $10 at most auto parts stores, then as you are using the tool to push the piston back in, open the bleeder screw. This will allow the fluid to go out the bleeder screw and not be pushed back into the ABS. When you are done installing the brakes, bleed them using a hand held vacuum pump. Do not pump the brakes to bleed them, this can also damage your ABS.|||most all calipers have removable pistons. if you just need to compress the piston then you can use c clamps or rent a caliper press from most any part store. if the piston came out u just have to be patient and slowly put back in. compress the piston as far as it will go and then install your pads and finish up|||Large pair of channel locks, or c clamp and just push the piston back in. Just be sure to take cap off brake resvour. And after done with putting back together be sure to pump the brakes really well to push the piston and pads back toward rotor.|||Big channel lock pliers will work fine. But please lay a towel or a rag over the brake fluid reservoir befor you start. Sometimes fluid will spray out and get everything wet. You know brake fluid will take the paint off of antthing it touches.