I am working on a 46 1/2 ton. When I got it, the truck pulled hard to the left when you slam on the brakes. I have rebuilt the entire system, including brake cylinders, master cylinder, and new flex hoses. I rebuilt the front end also, with oversize kingpins, it is tight. I have adjusted the brakes loose, tight and in between and the truck still locks up the left front wheel if you nail the brakes. If you mash the pedal less fast, it stops straight as an arrow. I have even checked the hard line to make sure I have no obstructions to the other brakes. I have worked on cars and trucks for many years and never had this problem. Help would be appreciated!
