With 105k and a flashing OD Light, I wouldn't bother changing the fluid if you have never done it before.
With that much mileage, the fluid has lost its lubricating properties YEARS AGO,
and your Seals, Clutches, and Valve Body are probably all worn out.
You can change the fluid, but the tranny will fail within the next few thousand miles.
I would start pricing for a rebuild.


Pete... 2004 Mercury Marauder 300A Black Clearcoat/Dark Charcoal LEATHER DOB 10/31/2003 DOP 1/2/2004 www.mercurymarauder.net