20×9 ET30
Documented on a 2007 GMC Sierra 1500HD Classic build — observed custom fitment, not a universal fit guarantee.
- Tires
- 255/50R20
2007 GMC Sierra 1500HD Classic Wheel Offset
Quick specs
- Bolt pattern
- 8×165.1
- Center bore
- 78.1 mm
- Thread
- M14×1.5
Wheels and hardware
More on AmazonLug hardware
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Dorman 611-236 Wheel Lug Nut M14-1.50
M14 x 1.5
Matches M14 x 1.5 thread — confirm wheel seat style
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White Knight M14 x 1.50 Lug Nuts
M14 x 1.5
Matches M14 x 1.5 thread — confirm wheel seat style
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White Knight 3809XLBK-33AM Black M14x1.50 Lug Nuts
M14 x 1.5
Matches M14 x 1.5 thread — confirm wheel seat style
Check price on Amazon
Wheel locks
More on AmazonReal-World 2007 GMC Sierra 1500HD Classic 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 — 2 documented builds
- 22-inch — 2 documented builds
4 documented builds.
Staggered · 22×? / Rear unknown
Documented on a 2007 GMC Sierra 1500HD Classic build — observed custom fitment, not a universal fit guarantee.
Wheel: Giovanna Gianelle Spezia-6
- Front
- 22×?
- Rear
- —
22×?
Documented on a 2007 GMC Sierra 1500HD Classic build — observed custom fitment, not a universal fit guarantee.
- Tires
- 305/40R22
20×?
Documented on a 2007 GMC Sierra 1500HD Classic build — observed custom fitment, not a universal fit guarantee.
More specs for the 2007 GMC Sierra 1500HD Classic
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.