Super beetles had struts and they ran from 1971 - 1975.
up to 1970 and 1976 had beams.
So being picky
Do you have struts or beam front end???
If you have struts it is a matter of changing the struts but if you want to lower and go 6" plus you need thinner springs as well.
If you have a beam you need either avis adjusters or another adjuster cut and welded into the beam. Sorry I am a strut person and not too sure about this. If you want low and wide or real low you may need a narrowed beam as well.