- 1987 Factory-verified
requires D85; shared M-body code; cited from the joint Astro/Safari pages of the Astro kits.
GM Heritage factory kit — 1987 Chevrolet Astro Van, p.29.
63A Factory-verified
Also documented for Chevrolet
Documented applications
This page aggregates every documented appearance of 63A in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.