I recently converted my 77 6 cylinder 77 C10 over to power steering. The pump I have isn't working while at a dead stop, or turning while driving below 10 mph. I am sure it is the pump. Can anyone recommend a Saginaw style pump model that will work at very low speed. It has to be a Saginaw style pump in order to work with the specific pump brackets that fits on an inline 6. All suggestions are appreciated.