I just finished lubing the input splines on my 1980 R100 (45k miles). Pretty straight forward operation. Next I service the final drive.
My question in looking at my Clymers is: They recommend applying a thick coat of 'drive spline lubricant' to the final drive coupling splines and to the drive shaft splines, when I reassemble the two after inspection.
Are these splines not lubricated by the "drive shaft oil"?
Steve in Santa Fe