The Mack towed a 20 foot tilt deck trailer to our 100th Anniversary Plowing Match with our John Deere 1830 and plow. With the 5 and 4 transmission behind the cummins 3.9 4BT motor the best I could do was 19th gear. Once there I plowed and the truck took part in the vintage display for the day. This winter plans are to get the 1940's pick up bed box made. Hopefully painted by next summer. If anyone has a March 6,1943 Saturday Evening Post Magazine I would be interested. It has a picture of a yellow Mack ED with the pick up box I would like to have built.