What company built these cars?

The ribs with angled ends on these cars look like Pacific Car and Foundry ribs. However, something about the ends of sides look like Berwick (I think it is the rivets). Also, the sides of the roof are not the distinctive design like the ones visible on some of Tropicana’s PCF reefers. One can be seen on first car on the second track from the left in the picture on page 40 of the March 2000 issue of Trains.
http://www.rrpicturearchives.net/showPicture.aspx?id=59580
http://www.rrpicturearchives.net/showPicture.aspx?id=115440
http://www.rrpicturearchives.net/rsList.aspx?id=TPIX&cid=30

I want one of them yellow things in the top picture…

The reefer or the trackmobile?

Ed[:D]

I would personally prefer the Trackmobile, built by Whiting Corp. I see that the rubber tires now align in the same direction as the steel wheels. The steel warehouse in which I worked one summer during my college days had loaded gondolas delivered to it by the EJ&E and the gondolas were moved within the property by a Trackmobile on which the rubber tires were at right angles to the steel wheels.

I’m going to go out on a limb and say that Fruit Growers Express might have built those cars.

Well , when I was at University I was partial to the odd reefer now and again [;)] (D&A testing put paid to that malarky though), I meant the trackmobile, what a great way to get around those rush hour traffic jams.