1996 Chevy Suburban

I have a 96 6.5 Diesel 8 lug Suberban that when I put on the brakes it pulls to the right.I have replaced the rotors & calibers the rubber brake hoses to both wheels and nothing helps. The right side will go through pads faster than the driver side, I have a good pedal but it always pulls to the right. Ihave even backed up on a dry rd and hit the brakes hard and the right side will lock up way before the driver side. Any ideas would be great I don't like to let the wife use it like this, or myself as well
thanks