- 2023, 2025–2027 Factory-verified
the 2023 Upfitter list reads Wiring Provisions - RH Door Delete (SEO); O: Cutaway 1WT (2027), Cutaway 2WT (2025–2026), Cutaway TG33503 (2025–2026), Cutaway TG33803 (2025–2026); not offered: Cutaway TG33903 (2025–2026); in the 2025–2027 guides only in the Cutaway guides
8T2 Factory-verified
Also documented for Chevrolet
Documented applications
This page aggregates every documented appearance of 8T2 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.