Almost right. 175 hulls for the Fletchers, of which 52 were later sold to foreign navies after their U.S. service was over. None were built for foreign countries. After the war we had over a hundred Gearing's and Sumner's and the smaller Fletcher class became redundant. They were sold off in whole lots.
The large cold war classes were the Charles Adams and Spruance classes.
The Burkes are a very strong design, particularly with some of the innovations of the Flight IIA vessels.
Have you seen the very large Burke derivitive the South Koreans are building? (The KDX-III or Sejongdaewang Class) Over 10,000 tons...more like a Burke cruiser and very heavily armed.
They recently finnished their 2nd in class and are building a third with a potential for three more.
I believe such a design could be used as a bridge to get us to the CGX and DDX one day when they can be built in numbers, particularly once we start retiring the Ticos.
I actually put together a proposal for one: