I'm looking at those too. Not sure how much of a PITA it would be to get my aluminum hydraulic jack in-n-out of it when needed though. My Tundra is somewhat of a service truck too at times, so accessibility is important too. I'll probably have this truck for a while and I'm not so keen on plastic boxes just yet. My last truck was 21 years old when I sold it last month, and aside from the aluminum cracking and being repaired, it's still a functional tool box. Heck, I could use it but it's uglier than home made soap.