Ball joints

[Angleiron]

Are they the same between a Gen II and a Gen IV?

[2Luke2]

I don't know about the lowers as I can't find the stock ones even for a Gen2, however the uppers should be the same from 96-2010. You can see one for sale here: http://www.viperpartsusa.com/catFrame.php?prodCat=15A

Also you can see aftermarket uppers and lowers here:
Upper: https://www.howeracing.com/p-7920-howe-22310-fits-k778.aspx
Lower: https://www.howeracing.com/p-7942-howe-22408-viper.aspx

We ordered the below for our Gen2:
Upper: Moog K778
Lower: Moog K7025