I think that i can not put the jato arm on the back of my slash, because i have the RCM aluminium trany case, and i can not grind the to-in block who hold the rear arm. Because i think that the jato arm, at the trany mounting point, is narower that the stock slash arm, right??

But if you can mesure the interior widht of the arm at the trany mounting point, this will give me an idea. I don,t know if you understand what i mean??