Very easy. The toughest part is taking all the cover bolts out. Two of those where the alignment dowels are longer then the rest. Take one of those and screw it into the one of two holes near the center of the secondary clutch. Only one is threaded so if it won't start with your fingers, go to the other one. Screw it almost all the way in. That will separate the secondary sheaves making the belt easy to remove. Be sure to install the new in the correct direction.