Here is my new tank/toolbox combo on a short bed 07 with a 75 gallon capacity. This is a standard weatherguard toolbox that I cut the bottom out of and lowered the tank into. I then used the cut out bottom and welded it over the tank to give me 8" of usable space. This along with my roll out box is perfect for me and I still have plenty of bed space.
Pump is a 10gal/min capacity, plenty fast enough if you greasing a machine as well.

 

nice set up!

 

I have the same tool box. What tank did you use? Nice work.

 

+1
What tank did you use?

 

Nice! Man, I need an aux tank...

 

I picked up a transer flow tank, cut the bottom out of the toolbox, rearranged the lid holders, inserted tank, made a bigger opening for fuelling and put a 10 gal/min pump on there.
I was sick of the empty space under the toolbox and the crap at the bottom I couldnt get at. inside it
Simple.