Don't know if you dropped it or not? But if so, I just did it this afternoon in 45 mins. That was with the truck sitting on a slope with a trailer hooked up, (buddy ran her out of fuel). The only jacking I had to do was when the tank was on the ground: I put a jack under the diff. and lifted the truck a couple inches. And mine is a 2wd... .....
One thing I would recommend is going to harbor freight and purchasing a motorcycle lift. It worked perfectly for lowering the tank! In addition, I have used it to lift a differential into place, raise my lawn mower, drop a transmission and a myriad of other things. Funny though it didn't work worth a crap for any of the bikes that I have owned.![]()
I second the motorcycle jack. Did mine in about 30 minutes with that. the hoses and the wires were also long enough for the tank to sit on the ground.