2005 Yukon Denali... The shaft on my power steering pump snapped. Belt keeps popping off so I can't drive it. Had to try my best to get a mile home and ended up towing it. Is there a belt that will work to bypass powering pump in a pinch?? Is my system hydroboost?? Can anyone recommend a good pump replacement?? Are there any tricks to get the pulley off a broken shaft (if it's a PITA)?? Anything else I should know or ask that I'm forgetting?