I have a US spec 1998 RAV4, 4door 2WD. I have fuel leaking from above my gas tank. The owner before me patched a small hole that was on the top drivers side edge of the tank. I can visually see that the leak isn't coming from that. I have yet to drop the tank or inspect in the access port under the carpet but I suspect it may be a different hole that may have developed in the tank. I am mechanically incline, so I was just wondering if anyone has had an issue like and replaced their tank with a bigger gas tank? Even just in general found a bigger gas tank that may fit? Since my vehicle is 2WD I don't need the hump in the middle and can see that for the most part exhaust and other parts won't be in the way for a bigger tank. I'd like to increase my range capacity since I often do road trips in this vehicle. Does anyone know of a quality after market larger tank I can find? I have yet to find one. Thanks guys, any help, tips or even suggestions are encouraged!