right front brake ,pulling right!!
 

just redid my front end. new rotors, bearings,calipers brake hoses, and line across front frame. i ve bled them 3 times. truck pulls hard to right when i put the brakes on hard. now ive cleaned the slides, anti seezed, everything is like new. asked at my mopar web site and one guy told me to install 3500 chevy rear wheel cylinders and that will fix it . so i ask you guys!! RIDDLE ME THIS BATMAN , WHY IS THIS GOING ON ??WHILE IM ASKING WHY IS THERE A SIM RING PLATE ON THE RIGHT FRONT ROTOR AND NOT THE LEFT? ok guys i cry uncle!! you can email me if you like par12730@sbcglobal.net thanks phil. got to hit the shower ill check back.[duhhh]

I would first try removing the shim and road test truck. Shim was installed to counter pull to left. It might be causing your truck to pull right now. Read the tsb I emailed you.

The shim fix it doesn't work and often gets stuck the the back of the rim and ends up in the wrong place during a tire rotation making things even worse.
Get rid of the shim.

Front feeling pull is often due to rear brakes not adjusted evenly.
Make sure the rears are adjusted correctly before doing anything else.

It might be that the left brake just is'nt working. or working as well.