Ursa 29T lower Diff Gear replacement

thingiverse

I recently attempted to build the latest URSA Bear truck, but I hit a major obstacle with the gear mesh in the new GB03 axles. The gears are skipping, and I have no idea why this is happening since they weren't skipping before. To resolve this issue, I created a slightly larger diff gear to close up the gap between the upper counter gear and the diff without modifying the axle case or anything else. The stock URSA gear has 28 teeth, while my new gear has 29 teeth, which means it slightly reduces the gear ratio of the axles. This is just a temporary fix, so it might lightly touch the inside of the axle case but will wear away a little and break itself in over time. I tested this solution on the bench and under some load on the floor for a few minutes, and it didn't skip or pop at all. However, your results may vary. Give it a try and see if it works for you. Check out my video on YouTube to learn more: https://www.youtube.com/watch?v=ABpVxQ0M0z0