Striper, thought about installing one, but instead went with a Derale Series 10000 40 row stacked plate tranny cooler. It's rated a 67,000 btu heat disapation per hour. The stock Ford cooler on my 2012 E-450 is only rated at 15,000 btu per hour...a big difference.
Simple to install and was able to use the stock Ford tranny cooler hoses. My install looks almost factory fit into the same space as oe cooler.
Derale is probably the best product out there. They mak everything from the cheaper type coolers up to the stacked plate design....not cheap, but very well made. Pricy, but you get what you pay for.