Well I realize this is a pretty stupid mistake. The brake fluid did ruin the master cylinder. In my defense the new master cylinder had a DOT3 fluid only tag on it. Evidently this truck has 2 options for master cylinder. One uses a reservoir and brake fluid. The other (my application) uses a hose from the hydraulic tank to keep the master cylinder full. I also found that only half of the shoes, the middle of the shoe is making contact with the drums. The drums are out of tolerance. Quoted customer for new drums. I appreciate the input mr fixit.