Well, I am going in deep. Full spline lube. (I have very complete dealer records, but no spline lube mentioned) Have the rear drive, swing arm, and tranny on the floor. Everything looks good, all seals not leaking. Splines look great, some original grease still present. (that red stuff the factory used sure looks like rust at first..) Clutch boot has some misting, so will replace it as well. So far I haven't pulled the clutch, but it was fine riding. Bike has 12K miles (1990) Will do a full fluid change etc. Starter, alternator seems fine, no issues that I can see. While I am down this deep is there anything else I should look at? It looks like the swing arm bearings are sealed, not like the airhead types. The movement is smooth so I will leave them alone. Just hoping not to have any "dang I should have".. moments)