2008 GMC Sierra 1500 Book Value
SLT 4x2 Extended Cab 6.6 ft. box 143.5 in. WB
National Average Book Values
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| Average Market Value | $10,459 |
| Low Market Value | $7,844 |
| High Market Value | $13,074 |
| Private Party Value | $8,890 |
| Trade-in Value | $7,530 |
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GMC Sierra 1500 Information
