As you review my posting just above Quick Step's ? I just had toppers put on my Grayhawk 29MV. (See pictures) by Camping World (CW).
I had stated in my previous post that they didn't have to remove the gutters. That was incorrect. What I was looking at was the (what look like gutters) the support bar that goes all the way around the top which holds the rubber seal on the roof. (newbe).
I highly recommend that you have them installed by the dealer or CW as the measurements for the Grayhawk is tricky. Have yet to be in an area where you have heavy tree fallout or rain. But I have peace of mind and the DW off my back (she wanted them on).