Trim combination, cloth, Dark Titanium

Years 2009, 2014 Models 2 Factory citations 3

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Also documented for Chevrolet

Documented applications

Sierra — GMT900 (2007–2013)

2009 Factory-verified

The list marks it (B) (08).

GM factory document — 2009 gmc sierra 2wd rpo code list, p.1.

Sierra HD — GMT900 (2007–2014)

2014 Factory-verified

Work Truck

GM factory document — 2014 gmc sierra 2500hd fleet order guide wayback, p.1.
GM factory document — 2014 gmc sierra 3500hd fleet order guide wayback, p.1.

This page aggregates every documented appearance of 88B in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.