Update. I think I have finally reached the correct dip stick reading. after almost 6 quarts in. Now I have to do some research on what damage could have been done to my transmission with only 5 or so quarts in the tranny when picked up my rig at the Westlie Ford Super Duty Service Center in Minot ND. As I understand it the correct amount in the tranny is 11-12 quarts. so I was 5 or 6 quarts low when I picked it up. I have been slowly adding so I do not over fill due to the fact I did not know how much was really in the tranny to begin with. I would go here. very poor work
Where did you source the 11-12 quarts capacity? For a 5R110W transmission (which I think you have...open for correction...) I am finding a TOTAL capacity of 17-19 qts for a total refill after rebuild/hotflush and 8 qts from a pan drop refill.
IMO, if the fluid is clean, you are OK. Heat is the most critical factor, and the color of the fluid is a good 'tattletale'. Not sure how one would 'research' what else went wrong inside without a teardown. Fortunately you have a 'dirt common' tranny, and not hard to find replacements. So the 'worst case' scenario isnt all that bad, although not pleasant either!!!
I am with HenryJ on this one also - CHECK YOUR LEVELS after someone has been working on your rigs powertrain. I do think that your caution to avoid overfilling was good, but the way you went about it I would not advise anyone to follow. Driving the rig AT ALL when the fluid doesnt show on the stick does not strike me as a good idea. Far from. I would be easily convinced driving over a thousand miles with low fluid could be more damaging than the initial under fill.

Chalk this one up to tuition towards your degree at 'The School of Hard Knocks' and carry on.
