Z84 ● Confirmed

Chevrolet · Regular Production Option

Custom Sport Truck (CST); Cheyenne from 1971

Years 1967–81 Models 1

Also described as Trim level 2: Cheyenne

Documented applications

C/K Trucks →

• 1967–72 ● Confirmed

  Top trim; buckets/console available

• 1973–81 ● Confirmed

  GMC: Sierra → High Sierra; dropped after 1981

This page aggregates every documented appearance of Z84 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.