I have a 2012 GMC D/A crew cab with a "standard" bed and tow our2012 FW with a Reese Slider and, so far, haven't hit the cab of the truck when towing or backing and haven't yet deployed the slider. I am not a very good backer so I watch very closely when backing to make sure I don't hit the truck. Usually, when I get to the point of almost hitting the truck, I am able to pull forward to straighten it out so the collision doesn't happen. I don't think you will have a problem with your set-up, but don't know whether or not your FW has the "rounded" corners that allow for a tighter turning radius. I know that with my older flat front FW, I used the slider a lot when backing.
