When I put it into to reverse it will go into to reverse fine will work fine on pavement but when I'm in some ruts it will click out into to reverse? What could this be? someone mentioned linkage? Any input helps thanks

 

I don't understand. "Click out into reverse"?

 

I will go to give it gas while in reverse and when i get over like 2000 rpm it will just go into neutral. It does it by its self