Need some advice from the folks here. I went out and purchased a level that screws to the front of the trailer. The thing is huge (11 x 3) but is easy to see and should help me level with out getting ...
It may be common to mount that large size on the front of the pin box on fifth wheels. I have installed the smaller ones that come with adhesive backing. I also put caulk along the side edges to hold them in place because the adhesive backing seemed to shift.
If I were going to screw them on I'd predrill and use small stainless screws with caulk.