[RC-Monster Mike]

There is not a one-size-fits-all answer, as our center skid has 2 possible positions, along with the ability to slide forward and back in each position. This is to allow various diffs to be used, as well as to optimize front/rear weight balance with various motors and extension lengths. For the stock length V-Maxx without extensions, the Traxxas front center cvd can be used when positioning the center assembly in the front position, along with a 108-112mm bone for the rear. With the 50mm extension, you need around 160mm for the rear bone. 142-145mm for the rear bone should work for the 35mm or UE extension.