Now I'm a little confused. The AN drawing shows 2X of item 28, the plunger and spring and 28 (one each for upper and lower plungers, I assume), but 0X of the 28A abutment spacers. In the photos below, the one for item 28 shows the plunger, spring, and plastic spacer, and item 28A shows just a plastic spacer. The dimensions of the two plastic spacers appear to be significantly different. Why the difference in dimensions for the two plastic spacers? Is the 28A and update design? The factory parts manual just shows item 28 as a set of plunger, spring, and spacer. From that, I'd assume that upper and lower plungers each have the same spring and spacer, but then I don't understand what the AN item 28A is for. Cam someone clarify this for me?
Ken