Misallocation

6.0L-Powered 1978 GMC C1500 Sierra Classic

Sold at Bring a Trailer on June 6, 2026.

$25,250Confirmed

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
TCL148A507020
Title
Clean
Condition
Good (3)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

Closest comparable sales
CarAuctionDatePrice
1978 GMC K1500 High Sierra 4×4Bring a Trailer, April 15, 2026Bring a TrailerApril 15, 2026$24,500
Modified 1978 GMC C1500 Sierra GrandeBring a Trailer, Jan. 24, 2026Bring a TrailerJan. 24, 2026$18,500
1978 GMC K2500 Sierra Classic 4×4Bring a Trailer, April 25, 2025Bring a TrailerApril 25, 2025$17,500
1977 GMC K1500 Sierra Classic 4×4Bring a Trailer, Oct. 10, 2026Bring a TrailerOct. 10, 2026$22,250
1979 GMC C15 Sierra Classic PickupMecum, Sept. 23, 2026MecumSept. 23, 2026$17,500
1978 GMC K1500 Royal Sierra 4×4Bring a Trailer, Sept. 1, 2026Bring a TrailerSept. 1, 2026$18,000
1977 GMC 1500 Sierra Classic PickupMecum, Aug. 13, 2026MecumAug. 13, 2026$13,000
49-Years-Owned 1977 GMC C1500 Sierra ClassicBring a Trailer, April 2, 2026Bring a TrailerApril 2, 2026$10,500