JA1 ◑ Single-source

Chevrolet · Regular Production Option

4.10 rear axle ratio

Years 1967–72 Models 1

Documented applications

C/K Trucks →

• 1967–72 ◑ Single-source

  —

This page aggregates every documented appearance of JA1 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.