This is the tank NWOR and Downey sell to fit where your spare tire rides. Holds about 14 gal. This was on a 1984 truck. Spare goes underneath the tank. I mounted a sending unit in this but may not work with your gauge, just have to cover the hole I drilled. Also don't have theplug that replaces your tank drain plug as I set this tank up with its own fuel pump. No dents just a small recess where the spare sets. These tanks sell new for $460 selling mine for $250 shipped from Moab. e/mail @ danwyocamper@yahoo.com