I'd be interested in knowing how that works out. I bought a tank for my TF from Chevy Duty about a year and a half ago and haven't even taken it out of the box to look at it but I'm assuming mine will have the same issue. I hate that! Even if they are made in China what is so damned hard about using the correct threads for the original fitting. As for repro parts, I'd like to find at least SOMETHING that doesn't have to be modified in order to fit. I'd say that's a slight misrepresentation of what they are selling.