This past month we have really been busy. On oct 31, I inquired about our 10 wheeler brakes. The pedal would be hard but you had no brakes. Just after that our combine motor caught on fire and we had to change motors from our old parts machine but we did get harvest finished. About a week ago we finally ordered a new brake booster for the truck, $275. It had some air in the lines and was doing the same thing as the old one. I could only get 2 bleed screws open, one on the front and one on the back, but I bleed and bleed the brakes until I was fairly sure I had all the air out of them. They seem to work good now. Thanks guys for your help on this. I had tried to bleed them with the old brake booster but could not get them to have good brakes every time. If the pedal came down and was hard then you had no brakes. It is a relief to know we have good brakes now. Again thanks.