How to do a Spring Under Conversion?

Can anyone make a list of things to do in order to accomplish a Spring Over to Under Conversion?

Has anyone out there done one of these recently?

Thanks,  

Over-to-under? Way easier than under-to-over.

Basically you'll need some new spring plates and U-bolts, perches, and possibly some new, longer shackles because the spring-under springs will have a higher arch than flatter spring-over springs and will grow more.

Up front on the steering, if the spring-over had a poorly-designed Z-shaped drag link, you can go back to a standard drag link/tie rod arrangement.

Do check the front driveshaft doesn't bottom out when the front springs compress or fall apart when it drops out. Otherwise, there's not all that much to it than welding on the new spring perches and bolting on the new springs.  
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