This seems like a low fluid scenario to me. You check the transmission level with the truck RUNNING and up to temp (97-115*). There is a 5mm head on the transmission pan you remove. If fluid leaks out, you're adequate, if nothing comes out, the transmission was low.
Had I seen this sooner, I feel like you might be better off verifying that it WAS or WASN'T low on fluid prior to them taking it. A dealer looking to make a buck, can easily just blame 155k miles as "worn out" when it was their negligence to begin with. Adding fluid back after a radiator replacement is an easily overlooked task.
Hope it works out for you. The fact they sent a tow truck so quickly, shows some liability on their part in my opinion. Hopefully they remain courteous with you.
Had I seen this sooner, I feel like you might be better off verifying that it WAS or WASN'T low on fluid prior to them taking it. A dealer looking to make a buck, can easily just blame 155k miles as "worn out" when it was their negligence to begin with. Adding fluid back after a radiator replacement is an easily overlooked task.
Hope it works out for you. The fact they sent a tow truck so quickly, shows some liability on their part in my opinion. Hopefully they remain courteous with you.