Used 2007 Gmc SIERRA 1500 for sale. Price: $4,700 Denver, CO 80229 More Denver, CO GMC Sierra 1500's 2022 $69,499 2,967 Miles 2021 $47,998 42,783 Miles 2018 $28,990 Miles 2020 $55,995 Miles 2016 $34,791 18,386 Miles 2019 $49,986 Miles