S/S Spring Hangers

Hope you dont mind, but I also posted this in the 62-65 section - hopefully I'll catch someone here that might miss it in the other section :)

Hi all

Can someone confirm whether it's necessary to use this type of spring hanger to fit super stock springs to a 63 B-body?

http://chucker54.stores.yahoo.net/manciniracing20.html

And if so, why?

We currently have s/s springs fitted to our 63 Polara but dont have this type of hanger. I havent looked at them myself for a while but my brother had a look last nite and said they are the same as the hanger on our 69 Sport Satellite :icon_scratch:

Thanks!