jenronn

I understand that Allison started shipping transmissions with Transynd already in the transmission . I have a 2005 workhorse with an Allison 1000 and was wondering if it came with transsynd or dextron. I am almost at 50,000 miles so I am wondering if I am due for a full change or just a filter? If it isDextron I plan to convert. Any help would be appreciated. VIN# is 5B4MP67G453403851