Mich. Comp. Laws § 168.255
If a candidate of a political party for the office of county road commissioner, after having qualified as a candidate, dies after the last day for qualifying, leaving the political party without a candidate for the office of county road commissioner, a candidate to fill the vacancy may be selected by the members of the county committee of the candidate's political party for the county, and the name of the candidate selected shall be transmitted to the county officials required by law to print and distribute ballots. The name of the candidate shall be printed on the ballots, but if the ballots have been printed, the county officials shall have the ballots reprinted with the candidate's name on the ballots and the reprinted ballots shall be distributed to the various voting precincts within their respective county.
MCL 168.255