You should look at my cast cover, I honestly don't think you can hurt it worst then I have hurt mine
. I have LOTS of a deep grooves and major rock rash on it with no issues.
At the expo 2 yrs ago? I slammed that diff cover twice into the corner of a concrete block at full throttle and it bounced off
. Only cover I have ever had on the 60. Only reason I would ever replace it is if I needed to weld to it for some reason.