2014 GMC Sierra 2500HD Wheel Offset

Quick specs

Wheel size: 8.5x20 · 9x20 · 9x22
Offset: ET40 · ET35
Backspacing: 5.82 in · 6.07 in · 5.88 in
Bolt pattern: 8×180
Center bore: 124.1 mm
Thread: M14×1.5
Tire size: 275/55R20 · 285/50R20 · 285/45R22

Explore wheels at Tire Rack

Showing matching bolt patterns and offsets up to 30 mm lower. Confirm center bore, load rating, and clearance at Tire Rack.

Configuration

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OEM configurations

Configuration	Rim	Offset	Backspacing	Tire	Bolt pattern	Center bore	Thread
6.0i · V8, Petrol	8.5x20	ET40	5.82 in	275/55R20	8x180	124.1 mm	M14 x 1.5
6.0i · V8, Petrol	9x20	ET40	6.07 in	285/50R20	8x180	124.1 mm	M14 x 1.5
6.0i · V8, Petrol	9x22	ET35	5.88 in	285/45R22	8x180	124.1 mm	M14 x 1.5
6.6TD · V8, Diesel	8.5x20	ET40	5.82 in	275/55R20	8x180	124.1 mm	M14 x 1.5
6.6TD · V8, Diesel	9x20	ET40	6.07 in	285/50R20	8x180	124.1 mm	M14 x 1.5
6.6TD · V8, Diesel	9x22	ET35	5.88 in	285/45R22	8x180	124.1 mm	M14 x 1.5

Wheels and hardware

Lug hardware

Real-World 2014 GMC Sierra 2500HD Wheel Setups

Observed aftermarket setups from documented Modified1 builds. These are individual build records — not OEM specifications and not clearance guarantees for every vehicle.

Common custom wheel sizes

Among builds in our database for this model year:

24-inch — 1 documented build
26-inch — 1 documented build

2 documented builds.

2014 GMC Sierra 2500HD custom wheel setup

Staggered · 24×15 / Rear unknown

Documented on a 2014 GMC Sierra 2500HD build — observed custom fitment, not a universal fit guarantee.

Wheel: ADV 08R Truck Spec

Front: 24×15 · 395/50R24
Rear: —

Compared with OEM

Compared with the 22×9 ET35 OEM configuration. Calculated geometry only — not fit confirmation.

Diameter +2" vs OEM

View full build on Modified1

Staggered · 26×10 / Rear unknown

Documented on a 2014 GMC Sierra 2500HD build — observed custom fitment, not a universal fit guarantee.

Wheel: OEM

Front: 26×10 · 305/30R26
Rear: —

Compared with OEM

Compared with the 22×9 ET35 OEM configuration. Calculated geometry only — not fit confirmation.

Diameter +4" vs OEM

View full build on Modified1

Compare your own setup

See how a different width or offset sits versus an OEM configuration for this year.

OEM baseline

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More specs for the 2014 GMC Sierra 2500HD

Each OEM row is a catalog configuration. Offset ranges are not collapsed when the database has exact setups. Documented aftermarket builds are observed setups only — not universal fit or clearance confirmation.