XRAY - Model racing cars

Hi.

I recently bought the Xray M18T Pro. It is a very cool little car and I am kind of glad that I bought that model. I have the Tekin Mini Rage 8.1 Kv combo installed in it and I am running on 11.1 volt.

On my first run I broke the steering servo after 2 minuttes of driving. It was just a cheap bad quality servo so I kind of expected it to break

I put on a new servo and wanted to take it out for a drive the next day. I drove around on my parking lot for about 10 minuttes when the rear diff broke
All the teeth on the ring gear are missing and some of the teeth on the bevel pinion. I was just so very dissapointed to see that it broke just from 10 minuttes of drivng on a flat parking lot.

I tried searching on the internet to see if I could find metal gears for my car but it doesn't look like anybody makes them.

Anyone know what I can do or where I can get a stronger diff???

All help is greatly appreciated