Seriously, without 20" wheels 4.10 gears are overkill on a Viper, especially if you have any mods. I have 3.55 gears and they are great, but I'd never go over 3.73 gears.
But the 4.10s are very good for Corvettes.
I had a Corvette before (which come stock with 3.42 gears), and I got a set of...