I just put in a split bench seat out of a 99 Dodge Intrepid. I used 1/4" angle and flat bar to install it. I bolted everything to the original seat floor frame. Took me about a day to do it. It fit in my 53 5 wind perfect. I also used the seat belts from the car. Plenty of room to slide it fore or back and for my T5 shifter. Very nice to sit on. On the gas gage, use a 12-6V drop resister on the hot side of the gage when you do the change over, then you won't have to change it. Do a voltage check, 6V head lights will work on 12V, just not for long.