I lost my brakes and power steering in Texas and had to use the trailer brakes to stop and muscle to steer. After nursing it home I pulled the power steering pump and found the drive was broken on the vacuum pump. I thought it was no big deal as I have 2 other engines, that is when I found out about the different size and tooth count gear on the vacuum pump. The dealer wants $2200. 00 list price for a rebuilt pump. Does Cummins sell parts for the pumps? I will probably have to go to Atlanta or Nashville for parts as there is no listing for Cummins in the Chattanooga phone book. Does anyone have any suggestions?