That is to bad about the free manuals . I did change the fuel pump in my 1974Vega . But that was like 25years ago . But I do remember some . On the side filler gas cap remove the cap then remove the screws that mount the filler tube to the body . I think there are 3 screws . unplug the 4pin power plug near the side of the tank . Place a floor jack under the old tank . Spray the tank strap bolts with WD40 this will help to remove the rusted bolts/nuts . Remove both strap bolts . Let the tank down easy just so you can see the lines . Cut the 2 fuel hoses as close as you can to the tank . Do not pull on the hoses to remove them or you will damage the fuel sending unit . Also you might have a small ground wire that you will have to unscrew from the body . If you can not unscrew it cut it close to the body and install a new end when installing the new tank . When you get the old tank out I will tell you how to switch over the sending unit to the new tank . COOL