So I finally installed my PMD relocation kit fron Pensacola Diesel. It was a really nice unit. It came with a new PMD, Heat Sink, Gasket, Extension Cable and Bolts. I made my own bracket to mount inside the stock bumper with some angle iron I had laying around. The whole install took about an hour, that included making the bracket and taking the grill off the truck.
I suggest the pump driver cooling plate be in air flow path to radiator fan. I've used many different cooler plate configurations outside engine bay and have found that if there is not enough air flow over plate cooler the driver can and does overheat which eventually leads to it's failure. When at idle w/o air flow over cooler plate is when you are at risk, been there done that.
I was originally going to mount the cooler is the path of the radiator but decided against it once I saw how Bill Heath mounted his to the skid plate. I couldnt afford his kit but wanted to mount it in a similar fashion. Keeping the operating temp of the PMD under 150* seems to be the most important thing. Im going to keep an eye on the current location. Im going to have to move it anyways when I figure out my front bumper situation.