[dwebster8783]

unless you guys are planning on modifying those tanks to be a 5 gallon tank you will not have room inside the rail even with a long bed. I can take pictures and measurements if you want since my bed is still off. I can hardly get a 7 gallon air tank to fit inside the frame rails. really your best bet is to do a tank inside the rails behind the rear end. those saddle tanks are really unsafe and I personally would rather have the cab tank then a saddle tank but thats my opinion . spend the few bucks on a blazer or suburban tank and you will be much happier with the out come. let me know if you need measurements.