oh and if you dont know this yet the stock drive shaft on the mvd is a joke for a good upgrade talk to toyotatruckin he makes a drop in shaft for the mvd that is a lot stronger then the stock one
here is his web page
http://www.aircapitolhobbies.com/R_C_Boat_Parts.html
and i dont know how new you are or if any one has told you but if you dont know when you start using metal props you have to sharpen and balance them if you dont know will tare your drive line up or even destroy you motor