People get mixed results with all the things you have mentioned.
I would highly recommend moving the transmission cooler away from the radiator. A lot of people mount them under the rear diff. Mine is behind a custom bashplate down below the chassis crossmember. Get one with a massive fan if possible. My cooler doesn't keep the trans icy, but it does remove the heat source from the main radiator, and keeps it cool enough
The Hayden 2905 clutch fan might help with engine temps once you move the trans cooler.
I don't think fancy bonnets will do much good, I have vents and didn't notice anything drastic.
How are you reading your temps, do you have an OBD port reader of some sort to give a digital read out?
For suspension, if you're happy with stock height, I highly recommend getting airbags, you can pump them up when towing, and deflate when you don't need the firmness. Get ones that entirely fill the coil, bumpstop to bumpstop (you can measure this height with the car unloaded. Airbags come in 1 inch increments so get the next full inch to make sure you can totally level out the jeep. (mine are from air bag man and they seem decent, they provided the exact size I wanted.)
Keeping these CRDs cool is something we are all trying to do, and basically it comes down to just managing it unfortunately.
I would say get a OBD reader, move the transmission cooler, and get some airbags. Keep it in a lower gear, don't be tempted to try and reduce your engine revs with higher gears. Then find a driving style that keeps the engine temps under 100degC.
There is always the Peter Pauli power lufter, a $2500 electric replacement radiator fan. Not sure anyone in Australia has tried one yet.
Sam
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