Yep Mel, my dad's '62 109" wagon had the Dual-matics. I have a set of those, too, but used and barely a spot of blue on them. Those Dual-matics are tenpting. The guys will be turning their eyes to the era uograde parts and accessories same as the Blazer guys want Hickey parts. Not that their weren't other less know companies sller much of the same stuff, such as Desert Dynamics... which I think is cooler stuff to have. I like obscure. I took the OEMs off my truck and slapped a pair of Dualmatic knobs on when I thought I was running aluminum slots. That lasted less than 500 miles when one old BFG went KABLOOWEE! (need paint (gold) but I like them all shiny.
I'm glad I grabbed and stashed the hub and Dana44 parts when they were still available. These guys would puke if they knew what I paid for each part. I think I paid about $60 for that pair... if that. I was getting a 30% discount back then to make things even sweeter.