I just cleaned up my drive shaft back to natural. It has a dull silver phosphate sort of color and feel. Probably because 20 years ago I had a new one built using the original ends and yoke. My original May/65 San Jose shaft was so beat up the shop couldn't balance it. What sort of finish would be suggested for this drive shaft ? The car is a driver but I would like to at least make an attempt to restore. Thanks for the suggestions. Brian