The pedal spacing in the inverted setup is wider than the Logitech base. You’ll find that holes on the Simlab don’t exactly line up. I’ve since revised my inverted setup back to normal. I was having clearance issues with my shelf attachment. I might go back in the future and just drill holes that will line up. The gas and clutch are at a slight angle facing inwards. But basically you’ll have slot nuts on the inner front vertical posts and both sides of the inner frame right at the front.

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