Forgot I had a build over here. Probably should update it lol. Anyways I installed a yj 15 gallon tank behind the rear axle. These tanks are the same as the CJ-7 tanks, just the fuel pump hole is different. I wanted to put a suburban fuel pump in it, so I extended the sending unit for the fuel pump by welding on some brakelines, then cut the hole on the tank bigger to accept it.
The way the tank mounts is pretty simple. I welded some angle between the framerails in the rear that the skidplate bolts up to.
The tank fits up there nicely, and clears the axle at full bump no issues. For fuel lines I used the fittings and nylon flex lines from a suburban I found in a junkyard. I used some union meant for fuel line repair and some replacement hard tubing for everything else. I figured all these part were designed to work together they might as well work just fine for the high pressure setup on the 5.3, and they were much cheaper than buying an fittings.
The way the tank mounts is pretty simple. I welded some angle between the framerails in the rear that the skidplate bolts up to.
The tank fits up there nicely, and clears the axle at full bump no issues. For fuel lines I used the fittings and nylon flex lines from a suburban I found in a junkyard. I used some union meant for fuel line repair and some replacement hard tubing for everything else. I figured all these part were designed to work together they might as well work just fine for the high pressure setup on the 5.3, and they were much cheaper than buying an fittings.