well like i said i figured it out, with my design i can get 10 in of travel on the a arm before it digs ther dirt, thats with out tires and with tires it will be like another 4 incvhes of travel before it digs but it wont go far enough to dig the dirt and no i will not give u specs yet even tho phragle prolly noes them lol but tomorro im gonna work on max swinger design cuz a douche bag stole my ruler and yardstick from me on my way outa skool and the metal ruler sliced my hand open, stupid f*ck holes