When you upgrade your ORV (Off-Road Vehicle) chassis R/C car, buggy, or truck gearbox with the MIP (Moore's Ideal Products) Super Ball Diff, you are limited to only using a 16t pinion gear. However, with an adjustable motor mount made specifically for the vintage or rere (re-release) ORV chassis, you can increase your options. But which options are safe and which one is best for your radio controlled model vehicle? We explain the physics and geometry to help you get the best gearing options in this episode of the RC Deep Dive podcast.