Just lost mine the other day. Anyone else? I'm told the brackets that hold it are crap and break in our cold winters if anything touches them. I've opted to replace it with an aluminum cap. One fellow is on his third plastic Ford cap.

 

I haven't had any issues with mine since I bought my truck, however the tonneau cover keeps it from flying away.

 

Prolly just as cheap to take it to a Line-X dealer and get them to just spray you a cap.