B-body 83/4 into a A-body

Hi, have a 73 duster that I want to install a 65 B-body 83/4 into,does anybody know if the offset spring hangers that are for sale will work without any welding? Tanks Mark

No, they won't work.
They are intended to move the springs inward.
Just cut the old ones off and weld new perches inboard about 1/2'' on each side and be done with it. They need to be 43'' center to center for the a-body width.
It's very easy to do, i did it on my Dart Sport and if you want pics and some info, check out my build thread.
If you can't weld, take them to a shop and have them do it for you, it shouldn't take more than an hour.