As stated it will not go onto scat stroker crank from probably 20 years ago. Fresh rebuild but no good if I can't get in on all the way. I used grease and a balancer installer to no avail. I sanded a bit with emery paper but gave up on that idea. There is a rift within the balancer from attempted installs. It measures at 1.485 with my calipers. The crank at 1.490. I'm considering using a flapper wheel. I pinned the flywheel but the force required is far more than I'm comfortable with.