I didn't see them on Camping World anymore.

I got mine from: http://cgi.ebay.com/_W0QQcmdZViewIte...mZ320349456540

I'm going to explore trimming, and maybe only installing two bits in the dips on either side of the spare for blind spot assistance (I might need 2 to make a straight across appearance from the peak of the spare), as opposed to overt backing assistance. I know center mass in the middle of the rear window is optimal, I just don't know if I want it there. For whatever reason, I'm thinking the visual aid is in the category that curb feelers reside in.