I have a 1994 Dodge viper and the gas tank filler has some rust how do I remove and replace the filler tube or can it be cleaned some how

SOURCE: battery location

Behind the Left rear tire behind the bumper under a panel
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SOURCE: How to change dodge neon fuel filler neck

unbolt the neck from the body of the car. Drop the gas tank enough to get the neck out. Reinstall.

SOURCE: 1999 Durango brake line leak

I have just done this job with aftermarket brake lines in three pieces, two 40" and one 30" joined by unions. I did not take the tank down, it is possible to reach the clips holding the brake line from the top reaching in with your fingers from the outside reaching over the frame. Make sure to have good light and a flashlight at hand. Above each clip holding the electric cable run you see next to the tank there is also a slot (in the same clip) for holding the brake line. I used the two long pieces in the rear and slid one in place, then joined it with the second one the short piece I used to do the final bend up to the junction block. The uninon for that one to the other two conveniently ended up right behind the front most clip holding the brake line and the fuel line to the chassis. I am not sure if I saved time or effort doing it this way I just shyed away from bringing down the tank as all I jacked up the car with was drive on ramps and there was not much space under it. Also the brake line did not conveniently burst when I had an almost empty tank to handle but the other way around...

SOURCE: how to clean rust from motorcycle gas tank

To remove the loose rust fill the tank to 1/4 of its capacity with small pebbles and shake it. To remove the rest fill the tank up to 1/10 with rust converter solution and slowly rotate it to cover all the rusted parts for at least half an hour.

SOURCE: my 2004 dodge ram 1500 4x4 with a hemi 5.7 will

my 2004 dodge ram 1500 2x2with a hemi 5.7 will not accept fuel.As soon as i start to fill it backs up the filler and stops the pump.the only way i can fill the tank is to hold the fuel nozzel out of the hole ans slowly shoot the fuel into the filler tube.This is not only unsafe for my wife and kids but very time consuming.replaced fuel fill tube already and had breather tube blownout and scoped by a mechanic.He now tells me i need a new $500 gas tank.Is this something i can have the dealership fix for free?