Detroit Model 6004 Fan Mount Extension
 

This is a bit of a long shot..... , but worth a go as you never know what is out there. I am looking for the Rear Fan blade mount Casting on the rear L/H side of a Detroit model 6004 engine . This engine was fitted to the later model Valentine Tanks of the day , and these used a single power pack , as opposed
to the twin engined Detroit Shermans , PM if you know of this missing piece for me, Cheers Andrew

Found the part today, it was sitting on my shelf above my eye level! Cheers .

The offending part, Cheers.

Glad you found it back, must be rare as hen's teeth :)

You may want to consider having it scanned so that in the future a 3D print can be made of it, either for direct use or as a mold to have one recast.