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Old 12-19-2011, 12:19 AM   #9
Bus Ted Knuckle
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Join Date: Jan 2007
Location: Hot Springs, Arkansas
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Re: 07 GMC Sierra Towing Question

Quote:
Originally Posted by vin63 View Post
Keep in mind that the towing capacity is not just the power and gearing, it actually has more to do with the suspension/load capacity (spring rate), braking capacity, E load range tires, and transmission cooling. My question is: what is the weight of the trailer and its tongue or pin weight?
If you look in your manual, it has a chart that lists towing capacities. The only difference in towing capacities (given the same engine, 4x or not, and body style) is the rear gears. It does not list trans cooler or not, breaking capacity or not, etc., just rear gears.

As Leevon said, the difference is in the gears.
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