WheelOffset

2014 GMC Sierra 2500HD Wheel Offset

ET40 · ET35

Quick specs

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

OEM configurations

ConfigurationRimOffsetBackspacingTireBolt patternCenter boreThread
6.0i · V8, Petrol8.5x20ET405.82 in275/55R208x180124.1 mmM14 x 1.5
6.0i · V8, Petrol9x20ET406.07 in285/50R208x180124.1 mmM14 x 1.5
6.0i · V8, Petrol9x22ET355.88 in285/45R228x180124.1 mmM14 x 1.5
6.6TD · V8, Diesel8.5x20ET405.82 in275/55R208x180124.1 mmM14 x 1.5
6.6TD · V8, Diesel9x20ET406.07 in285/50R208x180124.1 mmM14 x 1.5
6.6TD · V8, Diesel9x22ET355.88 in285/45R228x180124.1 mmM14 x 1.5

See how a different wheel would sit See wheel backspacing

What happens if you change the offset?

Compare your own setup

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

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Wheels and hardware for this vehicle

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Lug hardware

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  • M14x1.5 Lug Nuts Black with Spline Tuner, XL 2 inches Length Conical Aftermarket Wheel Nut, Compatible with Chevy GMC Ford Cadillac Lincoln SAAB Saturn Silverado 1500 Savana, Set of 24

    Confirmed vehicle catalog match. Confirm seat type for your wheel.

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  • Wheel Accessories Parts Set of 24 Black Spiked Solid Metal Lug Nuts M14x1.5 Thread 4.4 Inch Tall Closed End Bulge Acorn Spike Lug Nut 1 Socket Key- Fit Chevy Silverado 1500 Ford F150 GMC Sierra 1500

    Confirmed vehicle catalog match. Confirm seat type for your wheel.

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  • MIKKUPPA M14x1.5 Wheel Lug Nut - Replacement for Chevy Silverado 1500 2500, GMC, Ford, Ram, Aftermarket Wheel - 32pcs Black Closed End Lug Nuts with 1 Socket Key

    Confirmed vehicle catalog match. Confirm seat type for your wheel.

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Wheel locks

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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
2014 GMC Sierra 2500HD custom wheel setup

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

More specs for the 2014 GMC Sierra 2500HD

OEM offsets are catalog configurations, not an aftermarket “safe ET range.” Matching offset alone does not confirm clearance. Documented custom builds are observed setups only.