Yeah, I have rear-buggies. They really yeild me a lot more flex! I ran the filler tube thru the bed. Here's a pic. You have to cut the stock throat off the tank, and remount it on the top of it. MAKE SURE YOU GET ALL THE FUMES OUT BEFORE YOU DO ANY CHOPPING!! I recomend you use a 1.5" freeze plug to fill the old throat hole. It minimizes your welding on the tank and ensures a good seal. Plus they only cost about 2 bucks....Lemme know if you have anymore questions!