Yes, the 480's and 937's are batched...
FWIW it seems as though rear ends were the closest dated assemblies for 69's I have personally worked on or seen more than 20 cars with rears dated with-in 5 days of shipping dates.
Here are 4 off the top of my head...
69z 10D axle 1031
69yenko 01B 0119
69Z 04C 0418 0423 ship date
69L78 05B 0505