Connection of the downshift lever return spring to the top plate. In this photograph, the top plate has been deliberately set in an incorrect position so that you can see how the tab on the plate engages the loop on the return spring. When you actually assemble the shifter, you will leave the loop unconnected until after you partially install the top plate, and then pick it up by operating the downshift lever.

Connection of the downshift lever return spring to the top plate.  In
this photograph, the top plate has been deliberately set in an
incorrect position so that you can see how the tab on the plate
engages the loop on the return spring.  When you actually assemble the
shifter, you will leave the loop unconnected until after you partially
install the top plate, and then pick it up by operating the downshift
lever.