2006 GMC Sierra 1500 Wheel Offset

Quick specs

Wheel size: Multiple — see configurations
Offset: Multiple — see configurations
Backspacing: Multiple — see configurations
Bolt pattern: 6x139.7
Center bore: 78.1 mm
Thread: M12 x 1.5 · M14 x 1.5
Tire size: Multiple — see configurations

OEM configurations

Configuration	Front	Rear	Offset	Backspacing	Tire	Bolt pattern	Center bore	Thread
4.3i · 4.3L, LU3, V6, Petrol	6.5x16	—	ET25	4.23 in	235/75R16	6x139.7	78.1 mm	M14 x 1.5
4.3i · 4.3L, LU3, V6, Petrol	7x16	—	ET31	4.72 in	255/70R16	6x139.7	78.1 mm	M14 x 1.5
4.3i · 4.3L, LU3, V6, Petrol	7x16	—	ET31	4.72 in	245/75R16	6x139.7	78.1 mm	M14 x 1.5
4.3i · 4.3L, LU3, V6, Petrol	7x17	—	ET31	4.72 in	245/70R17	6x139.7	78.1 mm	M14 x 1.5
4.3i · 4.3L, LU3, V6, Petrol	7.5x17	—	ET31	4.97 in	255/70R17	6x139.7	78.1 mm	M14 x 1.5
4.3i 4WD · 4.3L, LU3, V6, Petrol	6.5x16	—	ET25	4.23 in	245/75R16	6x139.7	78.1 mm	M14 x 1.5
4.3i 4WD · 4.3L, LU3, V6, Petrol	7x16	—	ET31	4.72 in	265/75R16	6x139.7	78.1 mm	M14 x 1.5
4.3i 4WD · 4.3L, LU3, V6, Petrol	7x17	—	ET31	4.72 in	245/70R17	6x139.7	78.1 mm	M14 x 1.5
4.3i 4WD · 4.3L, LU3, V6, Petrol	7.5x17	—	ET31	4.97 in	265/70R17	6x139.7	78.1 mm	M14 x 1.5
4.3i 4WD · 4.3L, LU3, V6, Petrol	7.5x18	—	ET30	4.93 in	265/65R18	6x139.7	78.1 mm	M14 x 1.5
4.8i · 4.8L, LR4, V8, Petrol	6x17	—	ET36	4.42 in	245/80R17	6x139.7	78.1 mm	M14 x 1.5
4.8i · 4.8L, LR4, V8, Petrol	7x16	—	ET31	4.72 in	225/65R16	6x139.7	78.1 mm	M14 x 1.5
4.8i · 4.8L, LR4, V8, Petrol	7.5x16	—	ET26	4.77 in	245/80R16	6x139.7	78.1 mm	M14 x 1.5
4.8i · 4.8L, LR4, V8, Petrol	6x17	—	ET31	4.22 in	265/70R17	6x139.7	78.1 mm	M14 x 1.5
4.8i · 4.8L, LR4, V8, Petrol	8.5x16	—	ET26	5.27 in	265/75R16	6x139.7	78.1 mm	M14 x 1.5
4.8i 4WD · 4.8L, LR4, V8, Petrol	7.5x15	—	ET25	4.73 in	225/65R15	6x139.7	78.1 mm	M14 x 1.5
4.8i 4WD · 4.8L, LR4, V8, Petrol	7x16	—	ET36	4.92 in	275/65R16	6x139.7	78.1 mm	M14 x 1.5
4.8i 4WD · 4.8L, LR4, V8, Petrol	7.5x16	—	ET41	5.36 in	245/60R16	6x139.7	78.1 mm	M14 x 1.5
4.8i 4WD · 4.8L, LR4, V8, Petrol	8x17	—	ET31	5.22 in	275/80R17	6x139.7	78.1 mm	M14 x 1.5
4.8i 4WD · 4.8L, LR4, V8, Petrol	7x18	—	ET35	4.88 in	275/75R18	6x139.7	78.1 mm	M14 x 1.5
5.3i · 5.3L, L33, V8, Petrol	7.5x16	—	ET41	5.36 in	245/80R16	6x139.7	78.1 mm	M14 x 1.5
5.3i · 5.3L, L33, V8, Petrol	8x15	—	ET41	5.61 in	255/65R15	6x139.7	78.1 mm	M14 x 1.5
5.3i · 5.3L, L33, V8, Petrol	8x16	—	ET26	5.02 in	235/60R16	6x139.7	78.1 mm	M14 x 1.5
5.3i · 5.3L, L33, V8, Petrol	6.5x18	—	ET31	4.47 in	265/60R18	6x139.7	78.1 mm	M14 x 1.5
5.3i · 5.3L, L33, V8, Petrol	6.5x18	—	ET21	4.08 in	275/55R18	6x139.7	78.1 mm	M14 x 1.5
5.3i · 5.3L, L33, V8, Petrol	8x17	—	ET26	5.02 in	235/80R17	6x139.7	78.1 mm	M14 x 1.5
5.3i · 5.3L, L33, V8, Petrol	8.5x16	—	ET26	5.27 in	285/60R16	6x139.7	78.1 mm	M14 x 1.5
5.3i · 5.3L, L33, V8, Petrol	7x16	—	ET21	4.33 in	255/60R16	6x139.7	78.1 mm	M14 x 1.5
5.3i · 5.3L, L33, V8, Petrol	8x19	8x19	ET25 / ET46	4.98 in	275/65R19	6x139.7	78.1 mm	M14 x 1.5
5.3i · 5.3L, L33, V8, Petrol	9x17	—	ET15	5.09 in	265/65R17	6x139.7	78.1 mm	M14 x 1.5
5.3i AWD · 5.3L, LM7, V8, Petrol	5.5x16	—	ET20	3.54 in	245/75R16	6x139.7	78.1 mm	M14 x 1.5
5.3i AWD · 5.3L, LM7, V8, Petrol	6x16	—	ET41	4.61 in	255/65R16	6x139.7	78.1 mm	M14 x 1.5
5.3i AWD · 5.3L, LM7, V8, Petrol	7.5x18	—	ET26	4.77 in	265/80R18	6x139.7	78.1 mm	M14 x 1.5
5.3i AWD · 5.3L, LM7, V8, Petrol	7x18	—	ET26	4.52 in	275/80R18	6x139.7	78.1 mm	M14 x 1.5
5.3i AWD · 5.3L, LM7, V8, Petrol	9x18	—	ET30	5.68 in	245/75R18	6x139.7	78.1 mm	M14 x 1.5
6.0i · 6.0L, LQ9, V8, Petrol	7.5x18	—	ET21	4.58 in	255/60R18	6x139.7	78.1 mm	M14 x 1.5
6.0i · 6.0L, LQ9, V8, Petrol	8x16	—	ET31	5.22 in	255/60R16	6x139.7	78.1 mm	M14 x 1.5
6.0i · 6.0L, LQ9, V8, Petrol	7x17	—	ET35	4.88 in	275/55R17	6x139.7	78.1 mm	M14 x 1.5
6.0i · 6.0L, LQ9, V8, Petrol	8.5x17	—	ET25	5.23 in	245/75R17	6x139.7	78.1 mm	M14 x 1.5

Lug hardware

Real-World 2006 GMC Sierra 1500 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:

17-inch — 1 documented build
18-inch — 1 documented build
20-inch — 1 documented build

3 documented builds.

17×9 ET10

Documented on a 2006 GMC Sierra 1500 build — observed custom fitment, not a universal fit guarantee.

Suspension: Leveling Kit
Spacers: 2"
Wheel offset: ET10
Effective position: approximately ET-40.8 (calculated)

Compared with OEM

Compared with the 17×6 ET36 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 114.9 mm farther toward fender (more outward poke)
Inner edge 38.7 mm farther from suspension (more inner clearance)
Width +3" vs OEM

View full build on Modified1

18×9 ET0

Documented on a 2006 GMC Sierra 1500 build — observed custom fitment, not a universal fit guarantee.

Tires: 285/65R18

Spacers: 1.5"
Wheel offset: ET0
Effective position: approximately ET-38.1 (calculated)

Compared with OEM

Compared with the 18×6.5 ET31 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 100.9 mm farther toward fender (more outward poke)
Inner edge 37.4 mm farther from suspension (more inner clearance)
Width +2.5" vs OEM

View full build on Modified1

Staggered · 20×8.5 / 20×9.5

Documented on a 2006 GMC Sierra 1500 build — observed custom fitment, not a universal fit guarantee.

Wheel: Budnik Diggers

Front: 20×8.5 · 265/50R20
Rear: 20×9.5 · 295/45R20

Compared with OEM

Compared with the 19×8 ET25 OEM configuration. Calculated geometry only — not fit confirmation.

Diameter +1" vs OEM

View full build on Modified1

More specs for the 2006 GMC Sierra 1500

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.