Didn't know where to post this. Car is an E36 Chassis with an E30 rear end. In preparation for an upcoming DE I was bleeding brake fluid and noticed this. My left rear sub frame bushing has a rubber piece torn on the bottom. My right rear sub frame bushing has that same bottom rubber portion cracked. I'm guessing this might be contributing to excessive inside tire wear (in addition to the car being lowered) How critical is this? I want to replace them but would rather wait until my first DE of the new year.