Chevrolet 2003 Silverado 1500 Pickup Owner's Manual page 357

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Vehicle*
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Axle Ratio
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Maximum Trailer Weight
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GCWR
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*
Tongue weight should be 10 percent to 15 percent of trailer weight up to 1,500 Ibs (680 kg). Fifth-wheel or
gooseneck kingpin weight should be 15 percent to 25 percent of trailer weight up to 2,500 Ibs. (1 133 kg)
maximum.
**
Limited to 12,000 Ibs. (5 443 kg) with weight distributing hitch.
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