I’m trying to install Sean’s 3” extended swingarm and I’m having trouble getting the driveshaft extension installed correctly. It’s been a few years since I started working on this because of a new baby and working all the time. I don’t think the extension is seated all of the way. But without a bfh idk how to get it in anymore and I’m afraid to really wack it. If I tighten the nuts down it doesn’t feel like the driveshaft turns freely. Any suggestions?