under/over drive axle gearing?

[joe dierte]

A friend of mine has a Ax10 that he put overdriven front gears in so the front tires spin faster than the rear and it made a huge difference in its climbing ability. I started thinking about replaceing my rear axle with a Axial so it could have one piece axles and slower gearing than my creepers front, but I cant figure out what gear ratio the Venom is to compare the two. Has anyone done this already or know if it will work before I spend the money? Thanks

[Rockfrog]

13/39 3:1