[drifterx]

get 2 wrenches and a breaker bar or 2,
2 ways of doing it....

1) use the breaker bar on the one u want to take off, now use the other one and hold onto the bolt on the opposite side of that bolt..... this will prevent the wheel from turning....

2) use one on the bolt and the other on the crank bolt.....
u should be fine, i like the first method. just remember u need to keep the bolt there so u can turn the one opposite of it