x2 very good point.You might also want to carefully inspect the steel brake lines that run along the frame rail that is blocked by the tank, when you have the tank dropped.
These 2nd gen rams are known for that brake line to severly rust and burst suddenly. If it looks suspect at all, I'd replace that too while your in there.
Just my .02
Just curious as to why you're replacing the fuel filter. Get some contaminants in there? Asking because the only filter is connected to the fuel pump and its just a simple sock type. No need to replace it unless you suspect something has gotten in there.