Originally Posted by stangman39
When you say you slide yours back do you mean towards the tailgate? Do you have the tailgate step? I did 2 hours of reading last night and it seems everyone that has water issues around the tailgate has the step and due to the low areas where the step is no one has figured out how to stop water from coming in there yet. I just installed my F1 3 days ago and had some water inside the bed yesterday after driving through a 15 min heavy storm.
Unfortunately you will not get it 100% waterproof. I get a little in here and there after almost 4 years but I use a bedrug liner so nothing gets wet because everything is up higher than the bed floor.
2010 F150 STX Scab 4.6 3V, 6Spd, 3.73 LS diff, SCT X3 with 5 Star custome tunes, Bilinvic retrofit HIDs with FX heads, SGM buckets, flat black orbit shrouds, Morimoto 5Five ballasts, 5000k 5Five bulbs, and Evox-R projectors, Auto headlight mod, added TBC, Kenwood DDX 616 with rear cam, SGM Scorche HU surround, Infinity speakers x 4 and Sound Ordinance sub, Nitto TG 275/70-18s,