I bought the 41 gallon from RDS one from Northern HYD. I have had it for 6 years , moved from previous Chevy to my new Ford short bed. http://www.northerntool.com/shop/to...-tanks+auxiliary-transfer-tank-toolbox-combos
Which one do you have?
Additional question. Do you have a tonneau cover? And does this fit under the cover? Another way of saying this is - is it lower then the bed rails?