0 for sale · 16 auction results · latest Apr 19, 2026
The median auction sale for the GMC C1500 Custom was $18,069 over the last three years.
Where GMC C1500 Custom prices are heading, quarter by quarter.
Every sale and listing by mileage, the middle 50% of prices and how much 10,000 miles take off.
| Trim | Years | For sale | Median ask | Sold | Median sale |
|---|---|---|---|---|---|
| Sierra | 1979–1990 | 3 | $19k | 3 | $15k |
| Super Custom | 1970–1972 | — | — | 5 | $20k |
| Fenderside | 1964–1969 | — | — | 3 | $20k |
| 4×4 | 1968–1971 | — | — | 2 | $70k |
The state map, GMC C1500 Customs listed below market now, every model year's sales and asking prices, and the latest results.
