Yeah, the bushing was very rusty as well and will need to be replaced soon honestly. My impact is adjustable and I usually start with lower torque settings unless I need more power. After seeing the bolt that came out though, I'm also surprised that I didn't snap it. The body and actual mount didn't have any rust on them though, so that's the good news. I'm assuming that water could somehow infiltrate the body bushing and just sit there, rusting away at the bushing and the bolt.