GM dealer removed dipstick tube, however, did not find end of dipstick in end of tube as expected.
* They removed both pans, found & removed the piece, installed new dipstick.
* When I got truck home, I looked under truck, did not appear to me that the tranny was removed.
* I did see fresh sealant on both of the pans.
* I would have been happy to have left broken off piece in the bottom of the pan, however, the lead mechanic told me he could not guarantee 100% that the piece might cause trouble in the future.
* MORAL OF THIS STORY, CHECK END OF DIPSTICK AT LEAST EVERY OIL CHANGE, (IF NOT SOONER) TO ENSURE THAT OIL INDICATOR HAS NOT "SLIPPED" ON END OF STEEL CABLE.
Even considering this issue, this truck has been very dependable, (Quite unlike my previous 2001 FORD P-stroke that had tranny removed 4 times in 120,000 miles). Not bashing anyone, just stating the truth.
The ford rode better, had better interior, just was not mechanically dependable, (considering I was only pulling a 27.5 mid-profile Prowler part-time).