cvds of all brands offer some unusual properties that not many people understand.. as cvds spin, they have a natural tendency to want to straighten out.. this straightening out pulls the chassis with it.. if the cvds are angled down, they will tend to pull that end of the chassis down, or up yields up.. if there is a lot of plunge at the diff end, some of this effect is mitigated because of friction.. when i used to run offroad, on loose tracks sometimes we actually ran the rtr dog bones rather than cvds in associated buggies to free up the rear suspension..