Nope, you have the correct one for an A and it should run parallel with the frame on the right side.The frame creates the 4th side of the box. At least that the way it is on my B and on the other A's that I have seen.jdfan said:You could be right. The one on mine could have been added somewhere along the line and may not have been original. The one on your 60 looks like it belongs. The one on mine is just a rectangular box with a mesh bottom it it and no cover for the top of it.