- 1986–1987 Factory-verified
Shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits
GM Heritage factory kit — 1986 Chevrolet El Camino, p.6.GM Heritage factory kit — 1987 Chevrolet El Camino, p.47.
N91 Factory-verified
Also documented for BuickChevroletOldsmobilePontiac
Documented applications
This page aggregates every documented appearance of N91 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.