Front Bushing ID for A-body rear spring???

The stock A-body diameter is a 1/2". But pretty much all aftermarket springs come set up for a 5/8" bolt, a lot of the aftermarket spring hangers are 5/8" because of that. Even the A-body super stock springs from mopar come set up to use a 5/8" bolt.

That's what I have. MP SS springs. And they have the 5/8" sleeve for the bolt.

Thanks for answering my question.

If I order another set, they will have the same diameter bushing ID. So I will have to drill out the holes in the spring hanger and get some 5/8" bolts and nuts from a local hardware store...