2020 GMC Sierra 1500 Book Value
SLT 4x4 Double Cab 6.6 ft. box 147.4 in. WB
National Average Book Values
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| Average Market Value | $37,424 |
| Low Market Value | $28,068 |
| High Market Value | $46,780 |
| Private Party Value | $31,811 |
| Trade-in Value | $26,945 |
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GMC Sierra 1500 Information
