I am using a ford 9 in my chevy truck. After centering the housing in the frame, and tack welding the 4 link brackets on, I discovered the center of the pumpkin is about 3 inches to the passenger side. Of course, the pinion on my center section comes out on the passenger side 3 inches or so from the center as well. I'm wondering since the housing is symmetrical, can it be mounted upside down? It is the round 9 inch housing, not the "hump" housing, and it has the big bearing ends on it. If this was mounted upside down, the pumpkin would be around three inches off center to the driver side, and the 3 inch offset of the pinion would make it pretty close to center. If anyone can help that would be terrific!