Modified 1978 GMC C1500 Sierra Grande
Sold at Bring a Trailer on Jan. 24, 2026, offered with no reserve.
$18,500Confirmed
The price as reported by the house. Read from the house's results Oct. 25, 2026.
The car
- Year
- 1978
- Make and model
- GMC C/K trucks (1960 to 1998)
- Generation
- C/K 1973 to 1987 (square body)
- Gearbox
- Automatic
- Chassis
- TCL448S513394
- Title
- Clean
- Condition
- Fair (4)Likely
Condition is our reading of the listing's description on Hagerty's 1 to 4 scale, not an inspection.
Against comparable sales
Inside the middle half of 109 comparable sales.
Middle half of sales$14,250 to $32,000
Median$22,000
Sales behind it109Likely
From 109 sales of the GMC C/K trucks (1960 to 1998) C/K 1973 to 1987 (square body) in our data over the last 24 months. Hammer prices, before buyer's fees. Half sold between $14,250 and $32,000.
Closest sales
| Car | Auction | Date | Price |
|---|---|---|---|
| 6.0L-Powered 1978 GMC C1500 Sierra ClassicBring a Trailer, June 6, 2026 | Bring a Trailer | June 6, 2026 | $25,250 |
| 1978 GMC K1500 High Sierra 4×4Bring a Trailer, April 15, 2026 | Bring a Trailer | April 15, 2026 | $24,500 |
| 1978 GMC K2500 Sierra Classic 4×4Bring a Trailer, April 25, 2025 | Bring a Trailer | April 25, 2025 | $17,500 |
| 1977 GMC K1500 Sierra Classic 4×4Bring a Trailer, Oct. 10, 2026 | Bring a Trailer | Oct. 10, 2026 | $22,250 |
| 1979 GMC C15 Sierra Classic PickupMecum, Sept. 23, 2026 | Mecum | Sept. 23, 2026 | $17,500 |
| 1978 GMC K1500 Royal Sierra 4×4Bring a Trailer, Sept. 1, 2026 | Bring a Trailer | Sept. 1, 2026 | $18,000 |
| 1977 GMC 1500 Sierra Classic PickupMecum, Aug. 13, 2026 | Mecum | Aug. 13, 2026 | $13,000 |
| 49-Years-Owned 1977 GMC C1500 Sierra ClassicBring a Trailer, April 2, 2026 | Bring a Trailer | April 2, 2026 | $10,500 |