eRevo maXXed out 3905 style : Brushless rEvo

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The emaxx 3905 diffs are a drop in upgrade to the revo, not really a "mod" Yes they look a little different, but they drop right in. That ring on the front used in the emaxx application just goes into the old tool box, that is about as much 'modding' as you have to do. You could swap out parts if you wanted though.. that is easy enough as well, but it still is cheaper to buy the ebay full diff's than the retail parts that are different to upgrade.