2009 GMC Sierra 2500HD Wheel Offset

Quick specs

Wheel size
8x20 · 8.5x20 · 9x20
Offset
ET24 · ET20
Backspacing
4.94 in · 5.04 in · 5.29 in
Bolt pattern
8x180 · 8x165.1
Center bore
124.1 mm · 116.7 mm
Thread
M14 x 1.5
Tire size
265/60R20 · 275/55R20 · 285/50R20

OEM configurations

ConfigurationRimOffsetBackspacingTireBolt patternCenter boreThread
6.0i · V8, Petrol8x20ET244.94 in265/60R208x165.1116.7 mmM14 x 1.5
6.0i · V8, Petrol8.5x20ET205.04 in275/55R208x165.1116.7 mmM14 x 1.5
6.0i · V8, Petrol9x20ET205.29 in285/50R208x165.1116.7 mmM14 x 1.5
6.6TD · V8, Diesel8x20ET244.94 in265/60R208x165.1116.7 mmM14 x 1.5
6.6TD · V8, Diesel8.5x20ET205.04 in275/55R208x165.1116.7 mmM14 x 1.5
6.6TD · V8, Diesel9x20ET205.29 in285/50R208x165.1116.7 mmM14 x 1.5

Lug hardware

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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

    Catalog match for this vehicle. Confirm seat type and wheel style before buying.

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  • Dorman 611-236 Wheel Nut M14-1.50 Flattop Nut - 22mm Hex, 44.5mm Length Compatible with Select Models, 10 Pack (OE Fix)

    Catalog match for this vehicle. Confirm seat type and wheel style before buying.

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  • White Knight 1309-1S-20AM Chrome M14x1.50 Open-End Bulge Acorn Lug Nut, 20 Pack

    Catalog match for this vehicle. Confirm seat type and wheel style before buying.

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Real-World 2009 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:

  • 20-inch — 3 documented builds
  • 22-inch — 2 documented builds
  • 24-inch — 1 documented build

6 documented builds.

2009 GMC Sierra 2500HD custom wheel setup

Staggered · 24×? / Rear unknown

Documented on a 2009 GMC Sierra 2500HD build — observed custom fitment, not a universal fit guarantee.

Wheel: GFG Trento-7

Front
24×?
Rear
Compared with OEM

Compared with the 20×8 ET24 OEM configuration. Calculated geometry only — not fit confirmation.

  • Diameter +4" vs OEM
2009 GMC Sierra 2500HD custom wheel setup

Staggered · 22×9 / Rear unknown

Documented on a 2009 GMC Sierra 2500HD build — observed custom fitment, not a universal fit guarantee.

Wheel: Boss 330

Front
22×9 · 285/40R22
Rear
Compared with OEM

Compared with the 20×8 ET24 OEM configuration. Calculated geometry only — not fit confirmation.

  • Diameter +2" vs OEM
2009 GMC Sierra 2500HD custom wheel setup

20×?

Documented on a 2009 GMC Sierra 2500HD build — observed custom fitment, not a universal fit guarantee.

Tires
285/50R20
Compared with OEM

Compared with the 20×8 ET24 OEM configuration. Calculated geometry only — not fit confirmation.

    2009 GMC Sierra 2500HD custom wheel setup

    22×?

    Documented on a 2009 GMC Sierra 2500HD build — observed custom fitment, not a universal fit guarantee.

    Tires
    305/40R22
    Compared with OEM

    Compared with the 20×8 ET24 OEM configuration. Calculated geometry only — not fit confirmation.

    • Diameter +2" vs OEM
    2009 GMC Sierra 2500HD custom wheel setup

    20×?

    Documented on a 2009 GMC Sierra 2500HD build — observed custom fitment, not a universal fit guarantee.

    Tires
    275/55R20
    Compared with OEM

    Compared with the 20×8 ET24 OEM configuration. Calculated geometry only — not fit confirmation.

      2009 GMC Sierra 2500HD custom wheel setup

      20×?

      Documented on a 2009 GMC Sierra 2500HD build — observed custom fitment, not a universal fit guarantee.

      Compared with OEM

      Compared with the 20×8 ET24 OEM configuration. Calculated geometry only — not fit confirmation.

        More specs for the 2009 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.