In the description out to the right of each vin, it tells a little about the bronco, and usually if its a u13, half cab or wagon.
There are many like that or you can go into their garage photos to tell. You know probably more than most that several U13 were sold as half cabs or wagons. or wagons changed to half cabs, roadsters and so on. Unless we see the model number, even with a picture we are not sure what model it is. There are many on this list that does not list the model or even show pictures. When this thread was started no one thought about the model but just where the production number fell in line to the earliest one. As my Grandmother always said...Hindsight is 20/20