Hi Guys. I am having an issue finding a power steering pump that will take the pulley off the old pump. Both new pumps are supposedly a replacement for an 89’ Mustang. I bought one from autozone and the pulley just slipped right over the shaft with no pressure or install tool. I just received an A1 Cardone and it is almost the same issue. The pulley slides almost all the way on the shaft and only needed the install tool for about 1/8 an inch to make level with the end of the shaft. This doesn’t seem right as I had a heck of a time getting the old one off. The last time I removed and stalled one I had to crank on it the whole way to get it on the shaft. Any ideas what the problem could be? Thanks!