Hey Joe, Mine's a 46 and I relocated the tank back at the rear. The seat came out of a third row Dodge Caravan it's 46" wide. I'm using the space under the seat where the tank used to be for my hidden audio, storage etc. I made a couple of brackets for the seat mount and pivot, and added a few struts and latch ( from a KIA SUV) a quarter turn key from an RV. I turn the key it releases the latch and the seat tilts up. The back of the seat has to tilt forward to accomplish this for clearance at the rear of cab.
