Replacing the water pump on my '83 El Camino 305 and have hit a stumbling block. The lower bolt on the right (driver) side of the pump is blocked by an adjustment slot on the steering pump bracket. I've loosened the pivot bolt, the aforementioned slot bolt and a bolt that allows adjustment on the air condition pump bracket. The steering pump will not budge - what am I missing? Do I have to remove it to get to the water pump bolt?