Front axle identification information is stamped on the top of the differential carrier assembly. The information includes the following:
| • | Broadcast code (1) | 
| • | Supplier code (2) | 
| • | Date built (3) | 
| • | Shift built (4) - Optional for 8.25 and 9.25 inch axles | 
| • | Hour built (5) | 
In order to verify reports made on the differential case assembly, include full code letters and build date numbers.