Yep... the hoop type system is what I put onto the sprint car. The version with a lot of clearance above the diff.

I didn't use Spax or Koni as both can have the adjusters smashed and siezed by bottoming out the dampers where-as the Avo adjustables are adjustable via an external dial (which others arn't) and come in the correct lengths. (I have the part numbers somewhere)

They are a bit of a "Mother" to fit as space is tight and getting the ideal geometary is not easily achieved... also get some decent drill-bits!

Somewhere on the internet there are other articles on this conversion and a discussion on damper choice.

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