So I was hauling a few things across my property and decided (unknowingly) to see if I could back up the front of the ZR2 across a 6-ft diameter tree stump. Turns out I can - but not without putting a little ding into the right removable bumper cap. It's not really a big deal, and not very noticeable, but made me wonder just how difficult would it be to swap it out? I looked online and couldn't find a part number or a dealer who was selling one, so I don't even know what they cost. Anyone else tested this out yet?