JB5 ● Confirmed

Chevrolet · Regular Production Option

Power disc/drum brake system

Years 1973–82 Models 1

Documented applications

C/K Trucks →

• 1973–82 ● Confirmed

  Std config on light trucks

This page aggregates every documented appearance of JB5 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.