When looking at my shifter on the side of the Toploader, there is a about 2-3 mm play alltogether in the stack of parts between the side and the backing plate. Hard to explain (didnt take a photo, doh!) but there are 3 lever arms made of stamped out plate, controlling a gear selector rod each, and about 3 spacer parts out of plate as well. Should all these "guts" be stacked tightly together or is 2-3 mm total space OK? If the space is not OK, what to do (short of replacing the whole unit)?