GMC C/K trucks (1960 to 1998) C/K 1973 to 1987 (square body) (C/K 1973 to 1987 (square body))
127 sales on our records. Figures as of Nov. 11, 2026.
What it sells for
Middle half of sales$17,188 to $31,875
Median$22,125
Sales behind it60Likely
From 60 sales over the last 24 months. Hammer prices, before buyer's fees. Half sold between $17,188 and $31,875.
How it trades
- Auctions ended
- 47
- Sold
- 32
- Sell-through
- 68%
- For sale now
- 42
Asking prices now
39 cars for sale. Half ask between $16,748 and $31,750.
Asking prices are what sellers want, not what cars sell for.
Latest sales
| Car | Auction | Date | Price |
|---|---|---|---|
| 1985 GMC C1500 Sierra Classic PickupMecum, Oct. 24, 2026 | Mecum | Oct. 24, 2026 | $12,500 |
| 1986 GMC K1500 PickupMecum, Oct. 24, 2026 | Mecum | Oct. 24, 2026 | $35,000 |
| 1980 GMC K1500 High Sierra 4×4Bring a Trailer, Oct. 23, 2026 | Bring a Trailer | Oct. 23, 2026 | $12,750 |
| 1977 GMC K1500 Sierra Classic 4×4Bring a Trailer, Oct. 10, 2026 | Bring a Trailer | Oct. 10, 2026 | $22,250 |
| 1983 GMC K1500 PickupMecum, Sept. 23, 2026 | Mecum | Sept. 23, 2026 | $11,500 |
| 1979 GMC C15 Sierra Classic PickupMecum, Sept. 23, 2026 | Mecum | Sept. 23, 2026 | $17,500 |
| 1986 GMC K1500 Sierra Classic 4×4Bring a Trailer, Aug. 31, 2026 | Bring a Trailer | Aug. 31, 2026 | $31,500 |
| 1979 GMC K1500 Sierra Grande 4×4 4-SpeedBring a Trailer, Aug. 17, 2026 | Bring a Trailer | Aug. 17, 2026 | $23,500 |
| 1979 GMC C1500 Sierra Fenderside 3-SpeedBring a Trailer, Aug. 8, 2026 | Bring a Trailer | Aug. 8, 2026 | $9,201 |
| 1981 GMC C10 PickupMecum, July 24, 2026 | Mecum | July 24, 2026 | $15,000 |
| 1984 GMC K1500 High Sierra 4×4Bring a Trailer, July 2, 2026 | Bring a Trailer | July 2, 2026 | $18,000 |
| 1979 GMC K2500 High Sierra 4×4 4-SpeedBring a Trailer, July 1, 2026 | Bring a Trailer | July 1, 2026 | $17,250 |
| 1976 GMC K1500 Sierra Grande 4×4Bring a Trailer, June 5, 2026 | Bring a Trailer | June 5, 2026 | $7,000 |
| 1984 GMC K1500 Sierra PickupMecum, June 5, 2026 | Mecum | June 5, 2026 | $38,500 |
| 1985 GMC C3500 Sierra Classic PickupMecum, May 9, 2026 | Mecum | May 9, 2026 | $21,000 |
| 1985 GMC K1500 SIERRA CLASSIC PICKUPBarrett-Jackson, April 17, 2026 | Barrett-Jackson | April 17, 2026 | $47,000 |
| 1986 GMC K1500 PICKUPBarrett-Jackson, April 16, 2026 | Barrett-Jackson | April 16, 2026 | $20,000 |
| 1978 GMC K1500 High Sierra 4×4Bring a Trailer, April 15, 2026 | Bring a Trailer | April 15, 2026 | $24,500 |
| 1984 GMC K1500 PickupMecum, April 10, 2026 | Mecum | April 10, 2026 | $27,000 |
| 1986 GMC K1500 PickupMecum, April 9, 2026 | Mecum | April 9, 2026 | $22,000 |
| 49-Years-Owned 1977 GMC C1500 Sierra ClassicBring a Trailer, April 2, 2026 | Bring a Trailer | April 2, 2026 | $10,500 |
| 1981 GMC C1500 PickupMecum, March 19, 2026 | Mecum | March 19, 2026 | $24,000 |
| 1985 GMC K2500 Sierra Classic 4×4 PickupBring a Trailer, March 14, 2026 | Bring a Trailer | March 14, 2026 | $16,750 |
| 1976 GMC K1500 PICKUPBarrett-Jackson, Jan. 25, 2026 | Barrett-Jackson | Jan. 25, 2026 | $19,500 |
| 1976 GMC SIERRA GRANDE PICKUPBarrett-Jackson, Jan. 25, 2026 | Barrett-Jackson | Jan. 25, 2026 | $40,000 |
| 1985 GMC K1500 PICKUPBarrett-Jackson, Jan. 22, 2026 | Barrett-Jackson | Jan. 22, 2026 | $33,000 |
| 1977 GMC K1500 PICKUPBarrett-Jackson, Jan. 21, 2026 | Barrett-Jackson | Jan. 21, 2026 | $15,500 |
| 1979 GMC C10 PICKUPBarrett-Jackson, Jan. 20, 2026 | Barrett-Jackson | Jan. 20, 2026 | $25,000 |
| 1980 GMC C10 PickupMecum, Jan. 15, 2026 | Mecum | Jan. 15, 2026 | $34,000 |
| 1984 GMC K2500 Sierra Classic 4×4Bring a Trailer, Dec. 31, 2025 | Bring a Trailer | Dec. 31, 2025 | $6,700 |