Be patient on a response back through email only. Receiver hitch off a 2015 GM 3500 diesel. Mounting holes are 39 inches apart side to side. It has more surface rust on it since the pictures were taken. I'll try to remember to retake the pictures. It's a 2-1/2 receiver hitch but there's supposed to be a sleeve that slides in it and makes it a 2 inch. I usually only check email once a day but not on weekends. Cash only.