Hi, So I decided to replace the axle seals on my 1989 310-8. I managed to get the hub off with a puller, but I cant get the keyway off the axle. I tried some heat and tried to bang it out with a chisel but no luck. Can someone please offer some advice or tips? Should I use more heat? I didnt want to overheat it. Should I be heating it cherry red? Please advise. Thanks!