- 1990 Factory-verified
shared M-body code; cited from the joint Astro/Safari pages of the Astro kits.
GM Heritage factory kit — 1990 Chevrolet Astro Van, p.8.
QCU Factory-verified
Also documented for Chevrolet
Documented applications
- 1998–2003 Factory-verified
The list prints the size as P215/75/R15/N.
This page aggregates every documented appearance of QCU in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.