Hi Everyone, Obviously first time poster, very encouraged with the discovery of this forum. And yes, I have used the search function and Google a lot today. :-) I work at a transmission company, and in discussions with other more experienced engineers this statement was mentioned: "driveline stiffness is a function of gear ratio squared." Can anyone point me in the direction to better understand this statement? I'm sure I will have one of those "ah-ha" moments... Thanks! Mods: I posted this in the Mechanical Engineering forum, but decided this may be more relevant in the AE forum. I do not believe users have a "delete thread" option..sorry in advanced.