MRC ThunderKing Gear Diff

In upgrading my old MRC ThunderKing RC truck I found that the old ball diff is not up to the task of handling the power output from some of the new power plants. So, I borrowed the OpenRC diff here: https://grabcad.com/library/openrc-1-10-rc-differential-3d-printable by Daniel Noree. I modified it to work with the existing transmission and steel axle cups. Have not installed in the truck yet, but hopefully it works. 3d printing it in Taulman Nylon 645.