clutch fan gap too short

Fail fail fail.

I picked up two fan clutches for a W116 Mercedes, a Uro unit and used original MB unit and both clutches are exactly the same width as the Hayden unit. Specifically I bought parts for a 1977 Mercedes 280se and a 1979 450sel.

Also picked up a complete Toyota Tundra / 4Runner assembly that SSD provided a link for:

TOYOTA TUNDRA TACOMA 4RUNNER T100 COOLING RADIATOR FAN BLADE AND CLUTCH 3.4L V6 | eBay

.. but it's over an inch too long. Measuring at 3.8".

Also bought a fan from Rockauto, the only Mercedes unit they sell, and sure enough the fan blades spin the wrong way.

So despite the claims none of the units I've bought so far work at all. Still sniffing around the boneyards for a Volvo unit.

Of note is that I've spent some time on Mercedes-Benz forums and found that they dislike nearly all the aftermarket fan clutches because of the high failure rate. Apparently the stock unit, made by Sachs these days, is $550. So even if it fit it would be much too expensive. So my summary is that the MB parts just won't work.

I'll keep looking in the same of science.