First time posting here! I am about to start a concours restoration on my Dearborn 65 K Code Fastback. The car has been untouched since the early 70's till now. I removed the 9 inch axle tag and decided to decode it. The axle tag reads as follows:
WCZ-H
3.50
4LA
921
The data plate in the drivers door (which matches the vin, color, date etc.) has a 5 stamping for the axle, which decodes as a 3.50:1 conventional. The WCZ-H on the tag decodes to a 1965, 3.89:1 9 inch, 28 Spline axle assembly. But the tag has a 3.50 stamp on it, as you can clearly see in the attached photo. Is this a common occurrence or just a very odd anomaly?? The axle and tag are original to the car, date codes match, hipo specific axle bumper etc.