Well, I'm getting close to finishing my 1-ton Suburban conversion, but I think I need a 1-ton brake booster and master cylinder. For about 3/4 of the brake pedal travel, the brakes don't seem to do anything at all. From what I understand, the brake boosters have the same mounting patterns that bolt onto the firewall. I just wanted to double-check this before I go ordering a new brake booster and master cylinder that won't fit without modification on the truck. Thanks for the help.