the pump is bolted in sideways in the fuel tank. You don't have to drop the tank, but you DO need to get under the car...so you'll need some clearance under there. There's like 6 bolts that hold the outside of the pump to the tank. Fam...if you've got ANY gas in that jawn...be prepared to get poured on. No way around it. It will pour til it gets below the opening of the pump (again, it sits in there sideways as opposed to most pumps that go in from the top of the tank)