Review on GM Genuine Parts 22807122: High-Quality Heating & AC Blower Motor Resistor by John Castle

Bought, pulled old one out, but new one didn't fit. The original part had a large circuit board mounted at an angle to the right with a large connector. After looking at it and looking for one similar to the original, I found that the replacement is designed to be installed backwards and it will fit and work. Perfect. The larger bushing was on the left side on the original, but should be on the right side on the replacement. Two other tips: don't start until you have a 5.5mm socket or wrench (thanks GM). Also, change your cabin filter while you're down there.