I have had 4 tanks that needed cleaning and fixing so i did as follows---(1) remove fuel line at tank BE SURE TO USE 2 WRENCHES one for the line fitting and one for the soldered in fitting. that solder will not take much torquing to break it lose from the tank,(2) remove 2 bolts holding the tank closest to axle ( use 2 zip ties to hold tank and splash guard in position) (3) remove filler neck clamp closest to filler neck (4) loosen screw and nut holding filler neck, wriggle filler neck from hose. (5) remove bolt at rear of tank,cut zip ties, lower it by tipping it toward center of car, (6) remove wire from sending unit, this wire is fed through a hole in the trunk floor behind the gas filler neck housing. I have tanks cleaned at a radiator shop and used a gallon of carburetor cleaner , the home remedy worked best for me and a lot less costly," it is also reusable' tHEN USED GAS TANK RESTORE.