7.50-14 4 ply whitewall nylon

Years 1963–79 Models 2 Factory citations 3

Also described as 7.50-14-4 Nylon Whitewall7.75-14-4 Nylon Whitewall

Documented applications

Chevelle / El Camino

1964 Factory-verified

GM Heritage factory kit — 1964 Chevrolet Chevelle, p.74.
1965–1967 Factory-verified

GM Heritage factory kit — 1965 Chevrolet Chevelle, p.32.
GM Heritage factory kit — 1967 Chevrolet El Camino, p.6.

Impala / Full-Size

1963–70s (varies) Confirmed

This page aggregates every documented appearance of P61 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.