I just got the shock/forks rebuilt for my 92-CR250 Before putting the new susp. in I'm trying to replace the bearings in the swingarm and linkage. It was very stiff!! I was able to get the linkage off quite easily but I can't get the swingarm bolt out. I pounded on that thing all nite last nite with an impact socket and a 4 lb. hammer. I don't think it moved an 1/8 of an inch. I did drop some oil in hopefully to loosen it up but didn't seem to help much. My next approach was to take the wheel/brake assembly off and lay the bike on it's side, drop more oil in, and work the swingarm up and down for awhile and beat on it some more??? Would applying heat to the Aluminum swingarm be OK??? Hate to apply too much heat, cause the bolt runs through the cases. If this doesn't work I'm stumped. Can one cut through the bolt with a hack saw to get it off?? Any tips would greatly be appreciated. I'm going to post this on a couple of the other forums for hints too.