GAS TANK FROM INSIDE THE THE CAR BY CUTTING IN THE FLOOR UNDER THE REAR SEAT ...MORE OR SO REMOVING AND INSTALLING FUEL PUMP AND " O " RING ...WOULD LIKE MEASUREMENTS AND HOW MUCH ROOM FROM FLOOR TO GAS TANK ????
Um, don't cut your floor, do it from underneath... It's fun getting dirty
Sorry, I have not done it that way before, might not be such a bad thing if you going to be switching out the fuel pump all the time or something along those lines, easy access is always nice.
There is a sketch around for doing that; but the fuel lines are so close to the body that you'll need to drop the tank the first time anyway to cut the hole.