I have the same truck,
Did you notice any difference in coolant temps when you did the upper grill block? I have been considering doing the same, but I often use my truck pretty rigourously and overheating is a concern (similar climate to yours).
I'm planning on ducting the fog lights to the front brakes for cooling, as I have overheated them a couple of times on some steep mountain roads.
I'm already missing the front plastic belly pan due to a few not so well placed rocks.
At least your rear bumper is still straight, mines been worked over pretty good. Darn shrubberies!
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