67 Dart Leaf Spring Rebuild Kit Question

I can't say my 67 springs do or dont have the zink shims without checking. I can say my 68 model 6 leaf stacks do have them. Your springs may have been apart before.The zink will prevent sticking and noise that could come from corrosion.
I thought I would rebuild my springs and even looked at the kits. These really dont need rebuild. My plan is to turn them on their side and pour the water based one step rust ender through them. Good luck