Yes, you should order a low hump. The question for you is...are you SURE YOU ACTUALLY HAVE A LOW HUMP TRANS COVER. It could have been changed for some reason by a previous owner. A low hump carpet on a high hump floor would be too short side to side.
Logic, which is just an educated guess, says that if two different vendor's carpets were too short, with carpet from a company that has sold many, that you or your truck is the focus point. So please verify that your truck has a low hump floor. If you are not sure, post a pic or two with good lighting.
