To see what I am talking about, see these threads:
http://www.cumminsforum.com/forum/6-7l-non-powertrain/315094-c-ac-clutch-fell-apart-landed-fan-housing.html
http://www.cumminsforum.com/forum/6-7l-non-powertrain/372159-ac-clutch-fell-off-anybody-else.html
http://www.cumminsforum.com/forum/6-7l-non-powertrain/315094-c-ac-clutch-fell-apart-landed-fan-housing.html
http://www.cumminsforum.com/forum/6-7l-non-powertrain/372159-ac-clutch-fell-off-anybody-else.html