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Old 11-22-2020, 05:07 PM   #2
dennislbrooks
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Join Date: Feb 2004
Location: Williamsburg, Ohio
Posts: 1,760
Re: Transmission cooler

Just curious, does your yukon have the factory oem trailer package option? And I take your XL has a 4L80 or better?
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Last edited by dennislbrooks; 11-22-2020 at 05:09 PM. Reason: words
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