Scott, the pulley is somewhat fragile. I have broken a couple by using a drift through the pulley, against the blocek lip to try and hold the pulley. I have taken to using a Carftsman strap wrench, if you don't have luck holding the pulley with a drift, get some sort of strap wrench. I usually put the car in 1rst gear and have some-ne step on the brake as a further assist to the strap wrench. Good luck!!