Has anybody validated your payload sticker?

BenK wrote:
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I say it is based on the curb and no options with one 150lb driver.

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Gonna disagree with you Ben! Until I retired from GM that was one of the labels I was responsible for.
Effective 2005 model year "The combined weight of occupants and Cargo should not exceed XXXX" (aka "Payload") number was calculated for EACH vehicle "as built", but empty, and was supposed to be accurate within 10#.