Here's a steering wheel adapter for a Nardi wheel to a late style steering column. The bolt pattern for the wheel is six on 74mm. It's the "collapsible" style rather than the solid aluminum one. Comes with horn ground ring, rubber cover, and five of the six countersunk screws for attaching the wheel (can't find the sixth).
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SOLD!
Here's what the gap looks like when fitted to the late style steering column:
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thanks,
Carl