There be wiser and more reliable sources of info than I. But, call tucker and ask. I'm pretty certain though that your track assembly is much later than original equipment. They might be able to help you with that as well. Have data plate info handy when you call.
I have a feeling if someone has spares you hang on to them
Thank You, info helps a lot. I asked my co/worker to visit Tucker Medford in a few weeks to pick up a set.
Be sure to bring your samples with you when you visit Mecca( Medford).