I purchased the Thule 5401 snowboard roof...
I purchased the Thule 5401 snowboard roof rack for my son's 2005 Jeep Grand Cherokee (with factory installed roof rack). He has tried to install it on his vehicle, but says the roof rack bars are rounded and it seems to only fit a square roof rack. He also said that boards would scrape the roof of his car. Is there something that can be added or some type of adjustment that can be made or do I have to return the rack?