hey guys, signed up for a quick question!

i bought a fosage t400-2, because of the odd shape of the silverados floor(under the seats, and behind seats) its impossible to get a flush mount

my idea was to just mount it to the back wall, and apply some silicon sealant to the exposed screws(between the bed and cab)

not sure if the for screws will hold this bad boy up though, the metal is not very thick, and it weighs around 14 lbs!

any ideas would be appreciated