- 1997–2002 Factory-verified
the 1998–2000 lists print B/W; the 2001–2002 lists read "P235/75R15/X WS2 R/PE ST TL ALS"
GM Heritage factory kit — 1997 Chevrolet Express, p.42.
ZHB Factory-verified
Also documented for GMC
Documented applications
This page aggregates every documented appearance of ZHB in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.