I bought a Leer three years ago for my Ram. Got the Leer Locker option and the mounts failed on my deer hunt in AZ this year. Leer wouldn’t warranty it. Seems like a bad design to me. The cap has also gotten loose several times and rubbed the paint off of the top of my tailgate / truck bed. Won’t be buying from them again.
https://www.hunttalk.com/threads/truck-topper-leer-vs-a-r-e.294617/