This is a 1955 Mack Machinery Trailer Truck made from 1961-1962. It came painted Red, Green or Orange, and it's the longest of the Tootsietoys I have, coming in a 11" Long. It's hauling a Caterpillar Dozer (missing the blade) made from 1956-1967, it's about 3 1/2 inches long.

http://home.centurytel.net/geralde61/tthauler.jpg
http://home.centurytel.net/geralde61/tthauler2.jpg

Cool G!! are those repaints or originals?

repaints, they were very beat when I bought them

nice truck gerald .