The repair was fairly straight foward as shown in the video. However, driving the shaft from the bearings took some doing. It required replacing the use of the board with a spare bolt and a 2lb hand sledge. (having an air hammer as reserve, also not a bad idea) I rated this reair as a "1" however I've been an auto mechanic for 40 years. If you do not have good general mechanical ablities you may find this more challenging as you get it further apart. I suggest anyone making this repair should consider the bearings,seal, and spyder as "always replaced together".