Back in '68 I was a metallurgical process engineer at T&C Livonia. The process section was adjacent to, and part of, the QC lab in the southwestern corner of the facility. The very front of the property was all a two story administration building, with the Exec garage on the west end. There was an experimental group attached, and it was common for there to be tables lining the aisle with projects laid out for inspection. Quite likely what was the very first 'clutch' C-6 was displayed there for more than a month.
The bell was cut off the case and a scatter shield was attached to the front by way of the pump bolts. A hub from a converter had a fabricated trio of arms welded to it, in such a way as to pick up the release fingers for the Long clutch and so drive the pump. There was a plethora of small parts also laid out for inspection.
After it disappeared from the table, Jon Corrunker told me that he had it, or one like it. He was very adept at scoring one-off items that had gone through an exploration/examination program. Racers who worked at T&C and knew Bruno Zava, the Plant Executive Engineer, could count on a steady stream of 'government job' items being available.
KS