Squeaking right rear A arm bushing/rubber

On my 2013 900 a annoying squeak developed on my last ride, just over 1000 miles mainly on dirt roads. I first sprayed the bushings with lithium grease that don't have zerks, no luck. I then I got someone to push down on the bed so I could isolate the location. The vibration associated with the sound felt like the lower A arm bushing, removed wheel and unbolted the A arm. Rust was present on the outer edge of the bushing.......covered upper and lower bushings with Amsoil synthetic water proof grease, no more squeak!!! Looks like I will be adding zerks where Polaris should have, as I have seen done on this forum soon. I noticed zerks on the backside of the rear sway bar bushings. These are difficult to get to with my mini gun, non flex. However, jacking the rear moved the spring so it could be done. Not sure if they weren't fully tightened or vibrated out some, as the zerk came out with the gun removal. Checked the other side and it needed several turns as well to tighten.

Just thought I would pass along for others.

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