Get into your backhoe and find the tag next to your steering wheel bearing all of the backhoe's printed information.
Find the "Unit" number, which is a five-digit combination of letters and numbers; a sample "Unit" number is "8c06c." Write the number down with pencil and paper.
Use the date code information from the Ford 555 repair manual to determine the year. In this example from your resource, the "8" digit stands for "1988," the first "c" digit is "March," the "06" digits are the day of the month the backhoe was built, and the second "c" digit means it was finished in the afternoon shift. Write down the date and shift for future reference.