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Difference is .23" (almost 1/4 inch longer than stock)
I will have to take a closer look, too. You are right that the hub won't interfere.
I think there is a reason for them studs to be kind of short. But it wouldn't be the first time I'm wrong...
Careful: original studs are shorter, on both ends. You certainly don't want them to protrude too far!
Sadly, none of the typical bolts & nuts suppliers have the exact size studs, so you must go with the 2.0in-lenght and trim them down, on both sides.
Edit: I just checked one of those...