Hello everyone I’m looking for some help in figuring out where to drill holes for lug wrench clips in the trunk and the hole for the power antenna in the rear fender. Was wanting to get it right and I thought that the assembly manual would tell me exactly where to drill the holes. It looks like everything is based off the CL which I assume is the centerline of the car and the Dash Datum Line, not sure what that is. Can anyone provide any insight?

 

Dunno what year/model you have, but when I did the work on my '72 Supreme, I posted the same question and if you scroll down my thread you'll see pics with the measurements.

https://classicoldsmobile.com/forums...estion-131742/

Dave