My son picked this tank up for me at a u pull yard a few years ago. I think it is out of a blazer (s10 maybe?). I had to do some "massaging" to make it fit. As you see I notched the frame and boxed it in for the fuel filler. I made 2 straps and mounted it up to the frame. Almost looks factory from underneath...almost, till you see the 3" exhaust squeezed in there
. I will be using the in tank pump with a bypass type fuel pressure regulator (with a return). I also modified the cross sill to allow clearance of the sending unit/pump. I found a totaled late 90's suburban being parted out and scavenged the fuel door and lines to the tank. The length of the filler hose and vent line where a perfect fit..score! I wanted to have 2" to the tank and a 5/8" vent to match the filler hole/vent diameter. I also mounted the door high enough to allow 8" of fall (from the filler to the tank) to assure I would have no burping while filling the tank. I really wanted to have the tail light filler but here in Oregon we don't pump our own gas. Didn't want to chance someone breaking the tail light. I think I have about $60 total invested in this swap (just counting parts).