172 OMP Boss

[Clart]

I've searched the forum but can't seem to find a conclusive answer. The hub has 3 flat grooves in the spline bit. Is this suitable for a 172 ph2? How can this part fit both ph1 and ph2?

OD/1960RE114A
http://cgi.ebay.co.uk/OMP-Steering-...arts_Vehicles_CarParts_SM&hash=item5192a8ded9