Yes.. After 02 they put the tranny cooler on all libbys and made the power steering cooler come with the trailer tow pack.
What year is your Grand Cherokee? If its a WK, thats not a tranny cooler that you are looking at.. It is a HUGE power steering cooler. The 05-07 Grand Cherokees use a hydraulic fan to cool the engine unlike the traditional electric or engine driven fan. The WK does have some kind of tranny cooler b/c I found the lines going to the front from the tranny, but I couldnt figure out where they went. They do NOT go into the radiator like many may think. I was unable to get an answer in a WK forum..

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