The E-Savage is about the same width as the old narrow E and T-Maxx design, so the narrow CVDs from MIP should fit. Some folks on another message board (dedicated to the E-Savage; you might google to find it) have done this setup. I myself have ordered the parts to do it, but they haven't come yet. The main thing is that the stock shafts use a 10x15x4mm bearing in the axle carrier, and you need to replace that with a 6x15x5mm bearing when you switch to the Maxx sized CVDs. I'm not sure yet whether the MIP kit comes with 5mm or 6mm drive cups for the differential, but if they are 6mm, then you would need to switch to 5mm ones to fit the E-Savage sized diff outputs. If I need to do that I plan to buy the MIP 5mm cup that was originally spec'd for the T-Maxx center CVD kit.