gorilla G1's Gear cover? Anyone?

Just got a Gorilla G1 motor mount from a friend, been wondering if there is a gear cover for because on my truck, it has been always running in dirt and places like that, just cant advoid those thing to stuck in the gears, anyone actually know a gear cover that might fit?
I think Losi Lst's gear cover might fit, but never tried.
Help~~~
By the way, i tried searching, nothing come up.