Hi vwdave, I see this is one of your first posts here so let me say welcome.

If you look around this forum you may notice that I answer a lot of these types of questions but I wanted to let you know that I can't here.

Just so every one will know my research is soley based on the 924/931/944/951/952/968 because they share the same suspension as the 113 (Super Beetle 1303).

I haven't really looked into the other chassis/brakes much so I can't answer here. My point is that I wish I could help but can't and wanted to let you know so you didn't wonder why I didn't answer.