F78-14 Blackwall belted tire

Years 1963–79 Models 2 Factory citations 2

Also described as F78-14 B/B Blackwall

Documented applications

Chevelle / El Camino

1971–1972 Factory-verified

footnote-flagged in source (Canada/export, build-sheet/tag-only, documentation-only, or package base engine not reported as an option — see chevellestuff legend)

GM Heritage factory kit — 1971 Chevrolet Chevelle, p.61.
GM Heritage factory kit — 1972 Chevrolet El Camino, p.9.

Impala / Full-Size

1963–70s (varies) Confirmed

This page aggregates every documented appearance of PX5 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.