Awesome build! I love your efforts to eliminate as much wasted space as possible by tucking the slides over the wheel wells and staggering the center rib! Your inspiring me to weld something too.
I'm over-engineering something similar for my 6'6" bed Tundra but am cruxing out on using slides or just a PTFE runner. How's your experience with unlevel parking and the smooth rolling slides? I really want full length drawers but I can only find 60" (5') slides whereas I'd be limitless on just using PTFE.
I sold the truck more than a year ago, but only ever had issues with the the slides not locking out when on a little crooked ground. The locking slides need to be all the way extended to lock in place and if the weight pushed it toward the locking slide side, you'd just have to pull the drawer out a little further to get the lock to engage.
With a full length drawer just resting on a runner, you'll need to leave some of it inside the cubby to prevent it from just falling out. And at 6'6", thats a lot of over hang. You can always make a 6'6" drawer and have it only slide 5', then maybe have the back end of the deck flip up so you can access it, or not worry about the 1.5' of space that is under the deck. You should be able to reach your arm in and pull it out. There is no rule that says drawer length must equal slide travel.
