I've been doing a suspension rebuild on my 75 for the last 6 months. the front rotors are toast. my question is: Are the hubs reuseable? can I remove the rivets and just purchase new rotors. and does anyone know the procedure to install the old hubs to the new rotors? do I need to rivet the new ones on to the hubs? and where do I get the rivets? Thanks in advance. there is light at the end of the tunnel it just seems to be 1000 miles away.