Definitely don't need one with the Tahoe. The explorer can handle it ok. If you are not satisfied with the way it tows , you can then purchase a wdh. If you are worried about blowouts, purchase a RV tpms to monitor your tire pressure while towing.
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2006 2720SL , 2008 Toyota Tundra XSP Long Bed
Me , Wife and Two German Shorthaired Pointers
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