I heated mine up in the oven at 200* for 30 minutes and just before I slapped the balancer on the crank I froze the crank-snout with a shot of nitrous. I slapped it on as far as I could with a 2X4 and hammer. Then I used the stock bolt to pull it the rest of the way. Several other guys on the net suggested that the balancer be heated up to slide on easier.