I found a UWS black low profile toolbox locally here on craigslist. It's listed as a 72" model. My question is.. Will this work for the back of my 04 fx4? I've read places that ours takes the 69" model but looking at the measurements on UWS's website i think it may fit? Anyone have any experience or input?

 

I just walked outside and measured my Tractor Supply box, and it was roughly about 71 1/2in. I do believe it will work.

 

I've got a Tractor Supply Co. tool box (low profile). The cool thing about TSC is that we carried it outside and set it in the truck to make sure it fit before I bought it. Maybe the place where you're purchasing will let you do the same.