A few weeks ago I was venturing though Death Valley, California, and it was on the warm side. The trail I was on was very rocky, high in altitude, at a steady incline, and slow-going, monitoring my transmission temps they were getting up there even with my little Hayden oil cooler. I'm upgrading my cooler to a more efficient unit with a fan to get the CFM I need at slower speeds. While I have my front end apart, I was pondering about getting rid of that cross over tube and installing a finned power steering cooler (Derale 13223) in front of the trans cooler or even a larger unit if need be. Living in So Cal I do a lot of wheeling in warmer areas and want to keep everything cool and happy while pushing around a heavy GX on 33s. How efficient is the GX's OEM PS system in heat management, and would a PS cooler install be worth the trouble?