I have a PDF from the guy that has taken over Erich Demants work - Starter magnet mods/alternator rotor mod/drives hafts for g/s, GS and oilers plus other stuff.
I could attach it to an email or PM. Its 302kb... is there somewhere on the site it could be lodged?
Dunno Chris, I think they are intended for the serious off-roader.
There would be more harshness from the drive train without the cush. I'm sure other will know.