I have 3 of those and one have a few bugs, anyone that actually work or worked on them and know all about them please contact me.
Looking for TM's for M35A3 or M44A3 also

That's the 2 1/2 ton correct?
I've driven them and done operator's maintenance but that's all. Been almost 20 years too. Been retired from the NG for 14 years now and our Dueces were replaced with 5 tons long before then.

You might try posting your question in the Army Forums, there's a Logisics and Support thread there.

You might try the Military Vehicle preservation society too. Just google them.