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Is stock transmission cooler enough?
My 99 Silverado NBS 2wd 1500 5.3 with the factory tow package has a external transmission cooler. Is it enough to keep things cool towing a 6500 pound 5th wheel through relatively flat terrain?
I have a Derale remote fan cooler that I asked the guy who is installing my 5th wheel hitch to install. He says I don't need it because I alreay have the factory cooler.
Thoughts? Is this not a more/cooler is better situation?
Thanks,
Dave
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