I don't think I've ever seen a PS cooler on any vehicle I've ever had. I can't imagine the need for a PS cooler. Some really poor engineering if it would require a cooler for the PS.
I don't have a transmission cooler on my F350. No lines going from the tranny to the radiator either. Oh, that's right, it's a manual. No need to worry about frivolous items like tranny coolers.