Are the right and left deck gearbox housings the same for for a Walker GHS deck? I know there is a difference in the horizontal shaft because the vertical pinion gear is on a different sides for the LH and RH gearbox, but is the housing the same (they look alike to my untrained eye). A gearbox got busted when the mower hit an object. I disassembled the gearbox and the parts were all still good, so I tried to put them into an old deck gearbox housing that I had left from another mishap (not sure if it was from RH or LH gearbox). I couldn't get side pinion gear down far enough to install the horizontal shaft. It was either because it was the wrong handed gearbox and there was different spacing or I just had the vertical shaft (one the blade attaches to) sticking up too far. Based on the relative position of the bearings and the snap rings, it didn't look like I had shaft sticking out too far. Thanks.