Nope, I bought a Riddler cover for the rear diff. I like the smoother cover design over the ribbed Rockcrusher. Makes even more sense to me especially on the front diff, I'll be replacing the front one soon with a Riddler cover. I PM'ed the "guy" at Motion about it last night.
Make sure I get your complete address. You can PM me that if you prefer.
More than likely I will be back over in Columbus at the Kroger Bakery fairly soon. If I knew more about when, we could meet up and I could give it to you.