Z12 ● Confirmed

Chevrolet · Regular Production Option

Speedometer driven gear fitting & adapter

Years 1963–79 Models 4

Also described as Speedometer driven gearTire Pressure Stock (sticker)Speedometer driven gear & fittingSpeedo driven gear & fittings

Documented applications

Camaro →

• 1967–1969 ● Confirmed

  internal

• 1970s ● Confirmed

  internal

Corvette (C3) →

• 1974 ◑ Single-source

  price/qty NA

Impala / Full-Size →

• 1963–70s (varies) ● Confirmed

Nova / Chevy II →

• 1975 ● Confirmed

This page aggregates every documented appearance of Z12 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.