I had my 4500 replaced by the Dodge dealer in Nevada City, CA last week. I ordered the transmission from Standard Transmission for $1650 plus 150 freight. Took three days. Dodge charged me $1100 to install. Truck was disassembled by Dodge and they quoted me $5,000 plus tax to install a Dodge rebuilt transmission with the same crapy shaft. I got great service from Standard.
Bill