I have them in my 2010 crew cab. They aren't the most useful things and with a lot of traffic in the back seat the lids get broke, and the plastic liners crack with heavy use. Having said that,-I do use them to store Tire chains and tie down straps, and other small tools to help keep the cab floors clear of stuff, I had to replace a lid and the plastic liners but instead of buying them from Dodge I went to the local wrecking yard and removed them from a wrecked vehicle, the cost for two complete boxes, liners and lids was less than $50. You should be able to lift the floor mat and see it the holes are stamped or metal plugs outlining the holes are there, if they are remove the plugs and insert the boxes, I think they are held in with Six Loooong screws for each box.