Need help identifying AC Delco shock part numbers!

[Steve Cole]

My AC Delco shocks have two different sets of numbers stamped on the body, neither of which are the actual part numbers. Does anyone know how I can identify which shocks I have? I'm trying to get the specs on these to see if they are "drop" shocks or not. If i have to i can remove them and compare the extended and compressed lengths to the 2" drop KYB shocks that ECE sells. Can someone give me the measurements of the KYB's?

Thanks!