Chrysler date codes and how to identify them
Car and truck manufactures have used several methods to date code various parts that are used on vehicles
Wheel-type date code
The Box-Type Code has two numerals. These two numerals represent the last two digits of the year. EXAMPLE (1968 would be 68) followed by 12 boxes cast into the part. The number of these boxes marked indicates the month.
An EXAMPLE would be if 3 of these "boxes" are marked it would tell you it's March.
July 29,1961 was when the 10,000 day calendar began. It started at ooo1.
To use the chart below, find the DATE CODE on the part in question; find where the CODE falls on the chart. Subtract the CODE on your part from the closest number that is less than your CODE and add this number to the closest lower number on the chart.
Below is a chart of 10,000-day calendar Chart
|7-29-1961||0001|| "Day 1"|
|1-1-1964||0887|| Leap Year, 29 days in Feb|
|1-1-1968||2348||Leap Year, 29 days in Feb|
|1-1-1972||3809|| Leap Year, 29 days in Feb|
|1-1-1976||5270|| Leap Year, 29 days in Feb|
|1-1-1980||6732|| Leap Year, 29 days in Feb|
|1-1-1984||8193|| Leap Year, 29 days in Feb|
|1-1-1988||9654|| Leap Year, 29 days in Feb|