2008 Chevrolet Silverado 2500HD Wheel Offset

ET28

Quick specs

OEM offset: ET28
Wheel size: 7.5x17
Backspacing: 4.85 in
Bolt pattern: 8×165.1
Center bore: 124.1 mm, 116.6 mm
Tire size: 265/70R17

OEM configurations

Configuration	Rim	Offset	Backspacing	Tire	Bolt pattern	Center bore	Thread
6.0 · V8, Petrol	7.5x17	ET28	4.85 in	265/70R17	8x165.1	116.6 mm	M14 x 1.5

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What happens if you change the offset?

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

OEM: 17×7.5 ET28 · 265/70R17 · Front · 6.0 · V8, Petrol

New width (in)New offset (mm)

Outer: +0 mm
Inner clearance: 0 mm unchanged

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Wheels and hardware for this vehicle

Lug hardware

Wheel locks

Real-World 2008 Chevrolet Silverado 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 — 4 documented builds
22-inch — 1 documented build
26-inch — 1 documented build

6 documented builds.

DiameterLayout

2008 Chevrolet Silverado 2500HD custom wheel setup

22×9 ET30

Documented on a 2008 Chevrolet Silverado 2500HD build — observed custom fitment, not a universal fit guarantee.

Tires: 305/40R22

Compared with OEM

Compared with the 17×7.5 ET28 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 17 mm farther toward fender (more outward poke)
Inner edge 21.1 mm closer to suspension (less inner clearance)
Width +1.5" vs OEM
Diameter +5" vs OEM

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Staggered · 24×? / Rear unknown

Documented on a 2008 Chevrolet Silverado 2500HD build — observed custom fitment, not a universal fit guarantee.

Wheel: U2

Front: 24×? · 275/30R24
Rear: —

Compared with OEM

Compared with the 17×7.5 ET28 OEM configuration. Calculated geometry only — not fit confirmation.

Diameter +7" vs OEM

View full build on Modified1

24×?

Documented on a 2008 Chevrolet Silverado 2500HD build — observed custom fitment, not a universal fit guarantee.

Compared with OEM

Compared with the 17×7.5 ET28 OEM configuration. Calculated geometry only — not fit confirmation.

Diameter +7" vs OEM

View full build on Modified1

26×?

Documented on a 2008 Chevrolet Silverado 2500HD build — observed custom fitment, not a universal fit guarantee.

Compared with OEM

Compared with the 17×7.5 ET28 OEM configuration. Calculated geometry only — not fit confirmation.

Diameter +9" vs OEM

View full build on Modified1

Staggered · 24×? / Rear unknown

Documented on a 2008 Chevrolet Silverado 2500HD build — observed custom fitment, not a universal fit guarantee.

Wheel: DUB Bully

Front: 24×? · 275/30R24
Rear: —

Compared with OEM

Compared with the 17×7.5 ET28 OEM configuration. Calculated geometry only — not fit confirmation.

Diameter +7" vs OEM

View full build on Modified1

Staggered · 24×? / Rear unknown

Documented on a 2008 Chevrolet Silverado 2500HD build — observed custom fitment, not a universal fit guarantee.

Wheel: OEM Cadillac Escalade

Front: 24×?
Rear: —

Compared with OEM

Compared with the 17×7.5 ET28 OEM configuration. Calculated geometry only — not fit confirmation.

Diameter +7" vs OEM

View full build on Modified1

More specs for the 2008 Chevrolet Silverado 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.