If anyone needs to replace theirs, here's how you can do it:
Buy these rubber grommets from Lowe's (see 1st photo), or use similar. Then, trim off one of the rings with small sharp scissors, or nail clippers (don't "slice" it off with a knife as this will cause too short of a "bushing"). If you have the steel cup-shaped inserts (see 2nd photo), push them into the center holes, then place into the back of the cluster housing, insert screw and tighten. Worked perfectly for me (see last two photos), and was a cheap and effective repair. Hopes this helps.