Similar happened to me in my 89 with the AOD, it has two sections of 4 inches of rubber line, and the replacement radiator I got has the radiators tranny heat exchanger lines farther apart, so I added an inch of line to each side and connected them, but that put them in a bad spot and ruptured them. I had to drive 3 miles to get home, I added two quarts of fluid and made it.
No damage to the tranny that I can tell, 6k miles put on it after than happened.
But no electronics to fowl up in it though.
97 Mark VIII LSC/Silver/Gray leather
97 Cougar 4.6 Sport/White Opalescent Tricoat Metallic /Gray leather down but not out?
89 Cougar LS 3.8/Oxford White/Gray velour/HG need replaced AGAIN
00 Grand Marquis LS/Vibrant White/Gray velour
63 Falcon 302/black and rust/shed isn't moving
82 F-150/Oxford White/dumb VV carb doesn't pass emissions