- 1985 Factory-verified
Standard; the 1987 order guide prints OFT, so 1987 is not claimed
GM Heritage factory kit — 1985 Chevrolet El Camino, p.11.
QFT Factory-verified
Also documented for GMC
Documented applications
This page aggregates every documented appearance of QFT in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.