Thanks everyone for all that. I took pics of the bikes, untouched for 30+ years. I will clean them up a bit and repost the "after" pics. My mom's bike probably has less than 100 miles on the drivetrain. I don't remember ever seeing her ride it. Dad's was put through a rigorous testing program by me as a teen, and I couldn't kill it. I remember riding on the back as a 2-3 year old in the metal kids seat they had back then. Wish I still had that. Anyway, if I have any questions, and I'm sure I will, I'll be back. Cheers!

Ben