i have a lund visor that came on my 2000 f-350reg. cab when i bought it and have had nothing but problems since.it leaked when i first got it and fried a multi function switch that goes to the turn signals and such and when i shut the truck off the heater would stay on and the air bag light was on and and it would bong at you as you went down the road. well i fixed that and sealed the crap outta it and it made it from november to now and the past few days we got some rain and guess what. it leaked and fried the same damn switch. you guys suggest any stuff i could use to seal it better where the bolts are? if not im going to pull it off and sell it im getting sick of it... any help or suggestions are welcome so post em up.

thanks
ben

 

Are the mounting holes stripped out? I had this happen on an old F-150, ended up being a large rust hole. I had to made a sheetmetal patch with silicon between the patch and roof then paint and rivit it in place, then drilled new holes and get your screw started then put it out and place a good dab of silicon in the hole and on the screw. When the silicon sets up it should be permanent.
Good Luck.