I don't know quite what you mean by wanting it to move like a real tank (CRAWL) because the T34 was one of the fastest Tanks on the battlefield,
Unlike any American Tank of that era the T34 had the American CHRISTIE suspension which allowed it to travel at speeds as fast as 50 mph.
The story of Christie and his dealings with the American Government and the Government of the Soviet Union would fill a book, A truly amazing tale.
shaun.