Thanks 64fleetside.
I have looked online and see ones at American Autowire (page 38 of their online catalog). Are these the ones you refer to? Or is there another source you use?
By the way, I see in your signature that you have a 64 Suburban with a 350/700R4. Mine is a C10 fleetside short bed with the same combo. I use a 3.08 rear out of a 71. Get about 2000 rpm at 65 and love it. That's another thread. Talk with you later.
Again thanks to everyone here.