What part do I need to fix my analog odometer on my’92 Lincoln Town Car?

Only a certified odometer repair shop can make repairs to the instrument cluster for the odometer. Because odometer operation is a sensitive subject, the facility that does the repairs has to have special abilities to access and repair these components. It's likely impossible to find someone to do this almost 30 years later. Obtaining a used cluster may be the only solution, being sure to note somewhere the odometer on the old unit and new unit to continue accurate calculation.