Hmmmmm.... I've double checked the wheel bearings, they seem to be OK. I'm not sure about the brake pedal because I had my son pump the pedal when I was bleeding the brakes.

I've driven the truck a couple of hundred miles since I rebuilt the brake system. Some days the truck seems to drive just fine and other days if feels like you are dragging an anchor. That's why I started looking for a brake that was dragging.

Both front wheels seem to have the same resistance.

The rotors haven't seemed to have discolored from excess heat, but there seems to be an excess amount of brake dust.

I'm going to check the master cylinder. That's something I haven't looked at yet.

Thanks guys for all your help. If you have any other ideas let me know. I can't find a check valve in the Haynes manual, but that doesn't mean there isn't one.