Valuation Estimate

1966 GMC Sierra Value

Updated June 2026 · Based on real sold prices and current market data

Estimated value range High confidence
$11,095 $32,495

Median market value: $19,795 · Average: $21,607

Sample size
33
Sold sales
14
Active listings
5
Year window
±5 years

What the range means

$11,095 — Low end

Driver-quality cars with paint, trim, or mechanical work needed. 25th percentile of comparable sales — what survivors with deferred maintenance bring.

$19,795 — Median

Solid driver-condition examples with documented maintenance. The middle of the market — where most transactions happen.

$32,495 — High end

Concours-quality, numbers-matching, documented provenance. 75th percentile — what well-sorted, restored examples actually trade for.

Recent comparable sales

Vehicle Sold For
1966 GMC Sierra $16,495
1967 GMC Sierra $23,495
1964 GMC Sierra $19,495
1968 GMC Sierra $34,995
1970 GMC Sierra $6,895
1969 GMC Sierra $32,495
1961 GMC Sierra $33,495
1969 GMC Sierra $40,495
View all GMC Sierra sales →

For sale right now