A57 ✓ Factory-verified

Chevrolet · Regular Production Option

Supplementary (auxiliary) seat

Years 1964, 1967–72 Models 1 Factory citations 1

Also described as Auxiliary 1-passenger seat

Documented applications

C/K Trucks →

• 1964 ✓ Factory-verified
  ⛭ GM Heritage factory kit — 1964 Chevrolet Truck, p.15.
• 1967–72 ● Confirmed

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This page aggregates every documented appearance of A57 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.