I have a Mugen MBX8T that I keep breaking the rear differential housing. If it lands on the rear tires to hard or has a crash that causes it to land on the wing, the entire Rear Damper Stay will break the rear differential housing that it attaches to. This is the 3rd one I had replaced. The same set up is on my MBX 8R eco buggy but I’ve had no problems with that one.