Update from OP.
Front caliper working fine. Decided to adjust my rear parking brake also. That was very difficult on the drivers side. Just to confirm the set up because there seemed to be a lot of confusion on the internet about this. For this chassis - 2003 ford E350 V10, the rear brakes are disks with not cable adjustment possible. It must be done by removing the rubber plug and turning the star wheel with a screwdriver or brake spoon. Right side is easy access because it is at the bottom. Left side is at the top and very difficult to access because it is right against the leaf spring, but it can be done.
Also I strongly suggest any one with this set up to keep an eye on the rear brake pad wear to avoid any scoring on the disks because they require a lot of work to remove for replacement or re surfacing.
