I am rebuilding an 80's Charvel Model 4. Since it is currently just the body and neck I need to drop a Floyd Rose in it. I was looking though Musician's Friend and there are two types of lock nuts available, R2 and R3. How do I know which one I need?
G.A.S. Afflicted
R-2 = 1 5/8" Nut Width
R-3 = 1 11/16" Width NARROW
R-4 = 1 11/16" Width WIDE
R-5 = 1 3/4" Nut Width

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