Showing matching bolt patterns and offsets up to 30 mm lower. Confirm center bore, load rating, and clearance at Tire Rack.
| Configuration | Rim | Offset | Backspacing | Tire | Bolt pattern | Center bore | Thread |
|---|---|---|---|---|---|---|---|
| 6.0i · V8, Petrol | 8x20 | ET24 | 4.94 in | 265/60R20 | 8x165.1 | 116.7 mm | M14 x 1.5 |
| 6.0i · V8, Petrol | 8.5x20 | ET20 | 5.04 in | 275/55R20 | 8x165.1 | 116.7 mm | M14 x 1.5 |
| 6.0i · V8, Petrol | 9x20 | ET20 | 5.29 in | 285/50R20 | 8x165.1 | 116.7 mm | M14 x 1.5 |
| 6.6TD · V8, Diesel | 8x20 | ET24 | 4.94 in | 265/60R20 | 8x165.1 | 116.7 mm | M14 x 1.5 |
| 6.6TD · V8, Diesel | 8.5x20 | ET20 | 5.04 in | 275/55R20 | 8x165.1 | 116.7 mm | M14 x 1.5 |
| 6.6TD · V8, Diesel | 9x20 | ET20 | 5.29 in | 285/50R20 | 8x165.1 | 116.7 mm | M14 x 1.5 |
MIKKUPPA M14x1.5 Wheel Lug Nut - Replacement for…Confirmed vehicle catalog match. Confirm seat type for your wheel.
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Dorman 611-236 Wheel Nut M14-1.50 Flattop Nut -…Confirmed vehicle catalog match. Confirm seat type for your wheel.
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White Knight 1309-1S-20AM Chrome M14x1.50 Open-End Bulge Acorn…Confirmed vehicle catalog match. Confirm seat type for your wheel.
Check on AmazonObserved aftermarket setups from documented Modified1 builds. These are individual build records — not OEM specifications and not clearance guarantees for every vehicle.
Among builds in our database for this model year:
6 documented builds.
Documented on a 2009 GMC Sierra 2500HD build — observed custom fitment, not a universal fit guarantee.
Wheel: GFG Trento-7
Compared with the 20×8 ET24 OEM configuration. Calculated geometry only — not fit confirmation.
Documented on a 2009 GMC Sierra 2500HD build — observed custom fitment, not a universal fit guarantee.
Wheel: Boss 330
Compared with the 20×8 ET24 OEM configuration. Calculated geometry only — not fit confirmation.
Documented on a 2009 GMC Sierra 2500HD build — observed custom fitment, not a universal fit guarantee.
Compared with the 20×8 ET24 OEM configuration. Calculated geometry only — not fit confirmation.
Documented on a 2009 GMC Sierra 2500HD build — observed custom fitment, not a universal fit guarantee.
Compared with the 20×8 ET24 OEM configuration. Calculated geometry only — not fit confirmation.
Documented on a 2009 GMC Sierra 2500HD build — observed custom fitment, not a universal fit guarantee.
Compared with the 20×8 ET24 OEM configuration. Calculated geometry only — not fit confirmation.
Documented on a 2009 GMC Sierra 2500HD build — observed custom fitment, not a universal fit guarantee.
Compared with the 20×8 ET24 OEM configuration. Calculated geometry only — not fit confirmation.
See how a different width or offset sits versus an OEM configuration for this year.
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.
