Our advice would be to make sure you check with the dealership they're working with and be sure they are offering Costco discounts on Mavericks. Be sure you are dealing with the specific person at the dealership who's working with Costco. Get it all in writing.
We originally were trying to...
We used the original hardware that came on the vehicle. I think we had read about issues with the ones that came with the mudflaps. So if you still have them, you might give that a try.
Just got ours a week ago - on Oct 3 - ordered Sept 16 2022. So much to learn - newest car before this was a 2002! 35 days from shipped to delivered (and I think it also sat in Portland for at least 2 1/2 weeks en route).
Looks like someone used the discount last week, but it is now showing as not valid. Is it still available?
edit - I also see that it was put up on Aug 10th and it's supposed to be available for a month. Wanting to order this :)