2015 Chevrolet Silverado 1500 Wheel Offset

Quick specs

Wheel size: 8x17 · 8.5x18 · 9x20 · 9x22
Offset: ET24 · ET27
Backspacing: 4.94 in · 5.19 in · 5.56 in · 5.44 in
Bolt pattern: 6×139.7
Center bore: 78.1 mm
Thread: M14×1.5
Tire size: Multiple — see configurations

OEM configurations

Configuration	Rim	Offset	Backspacing	Tire	Bolt pattern	Center bore	Thread
4.3 · 4.3L, V6, Flex-Fuel	8x17	ET24	4.94 in	255/70R17	6x139.7	78.1 mm	M14 x 1.5
4.3 · 4.3L, V6, Flex-Fuel	8x17	ET24	4.94 in	265/70R17	6x139.7	78.1 mm	M14 x 1.5
4.3 · 4.3L, V6, Flex-Fuel	8.5x18	ET24	5.19 in	265/65R18	6x139.7	78.1 mm	M14 x 1.5
4.3 · 4.3L, V6, Flex-Fuel	9x20	ET27	5.56 in	275/55R20	6x139.7	78.1 mm	M14 x 1.5
4.3 · 4.3L, V6, Flex-Fuel	9x22	ET24	5.44 in	285/45R22	6x139.7	78.1 mm	M14 x 1.5
5.3 · 5.3L, V8, Petrol	8x17	ET24	4.94 in	255/70R17	6x139.7	78.1 mm	M14 x 1.5
5.3 · 5.3L, V8, Petrol	8x17	ET24	4.94 in	265/70R17	6x139.7	78.1 mm	M14 x 1.5
5.3 · 5.3L, V8, Petrol	8.5x18	ET24	5.19 in	265/65R18	6x139.7	78.1 mm	M14 x 1.5
5.3 · 5.3L, V8, Petrol	9x20	ET27	5.56 in	275/55R20	6x139.7	78.1 mm	M14 x 1.5
5.3 · 5.3L, V8, Petrol	9x22	ET24	5.44 in	285/45R22	6x139.7	78.1 mm	M14 x 1.5
6.2 · 6.2L, V8, Petrol	8.5x18	ET24	5.19 in	265/65R18	6x139.7	78.1 mm	M14 x 1.5
6.2 · 6.2L, V8, Petrol	9x20	ET27	5.56 in	275/55R20	6x139.7	78.1 mm	M14 x 1.5
6.2 · 6.2L, V8, Petrol	9x22	ET24	5.44 in	285/45R22	6x139.7	78.1 mm	M14 x 1.5

Wheels and hardware

Lug hardware

Wheel locks

Real-World 2015 Chevrolet Silverado 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:

20-inch — 8 documented builds
18-inch — 4 documented builds
17-inch — 3 documented builds
22-inch — 2 documented builds
26-inch — 1 documented build

18 documented builds.

DiameterLayoutSuspension

2015 Chevrolet Silverado 1500 custom wheel setup

17×8.5 ET0

Documented on a 2015 Chevrolet Silverado 1500 build — observed custom fitment, not a universal fit guarantee.

Tires: 285/70R17

Suspension: Leveling Kit

Compared with OEM

Compared with the 17×8 ET24 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 30.3 mm farther toward fender (more outward poke)
Inner edge 17.7 mm farther from suspension (more inner clearance)
Width +0.5" vs OEM

View full build on Modified1

18×8.5 ET0

Documented on a 2015 Chevrolet Silverado 1500 build — observed custom fitment, not a universal fit guarantee.

Tires: 285/65R18

Suspension: Leveling Kit

Compared with OEM

Compared with the 18×8.5 ET24 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 24 mm farther toward fender (more outward poke)
Inner edge 24 mm farther from suspension (more inner clearance)

View full build on Modified1

20×10 ET-19

Documented on a 2015 Chevrolet Silverado 1500 build — observed custom fitment, not a universal fit guarantee.

Tires: 33/12.5R20

Compared with OEM

Compared with the 20×9 ET27 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 58.7 mm farther toward fender (more outward poke)
Inner edge 33.3 mm farther from suspension (more inner clearance)
Width +1" vs OEM

View full build on Modified1

20×9 ET-12

Documented on a 2015 Chevrolet Silverado 1500 build — observed custom fitment, not a universal fit guarantee.

Tires: 295/55R20

Suspension: Leveling Kit

Compared with OEM

Compared with the 20×9 ET27 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 39 mm farther toward fender (more outward poke)
Inner edge 39 mm farther from suspension (more inner clearance)

View full build on Modified1

20×9 ET27

Documented on a 2015 Chevrolet Silverado 1500 build — observed custom fitment, not a universal fit guarantee.

Tires: 35/12.5R20

Suspension: Suspension Lift 6"
Spacers: 1.5"
Wheel offset: ET27
Effective position: approximately ET-11.1 (calculated)

Compared with OEM

Compared with the 20×9 ET27 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 38.1 mm farther toward fender (more outward poke)
Inner edge 38.1 mm farther from suspension (more inner clearance)

View full build on Modified1

20×9 ET18

Documented on a 2015 Chevrolet Silverado 1500 build — observed custom fitment, not a universal fit guarantee.

Tires: 305/55R20

Suspension: Leveling Kit

Compared with OEM

Compared with the 20×9 ET27 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 9 mm farther toward fender (more outward poke)
Inner edge 9 mm farther from suspension (more inner clearance)

View full build on Modified1

18×9 ET20

Documented on a 2015 Chevrolet Silverado 1500 build — observed custom fitment, not a universal fit guarantee.

Tires: 305/70R18

Compared with OEM

Compared with the 18×8.5 ET24 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 10.4 mm farther toward fender (more outward poke)
Inner edge 2.4 mm closer to suspension (less inner clearance)
Width +0.5" vs OEM

View full build on Modified1

17×8.5 ET0

Documented on a 2015 Chevrolet Silverado 1500 build — observed custom fitment, not a universal fit guarantee.

Tires: 315/70R17

Suspension: Suspension Lift 3"

Compared with OEM

Compared with the 17×8 ET24 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 30.3 mm farther toward fender (more outward poke)
Inner edge 17.7 mm farther from suspension (more inner clearance)
Width +0.5" vs OEM

View full build on Modified1

18×9 ET0

Documented on a 2015 Chevrolet Silverado 1500 build — observed custom fitment, not a universal fit guarantee.

Tires: 265/65R18

Compared with OEM

Compared with the 18×8.5 ET24 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 30.4 mm farther toward fender (more outward poke)
Inner edge 17.6 mm farther from suspension (more inner clearance)
Width +0.5" vs OEM

View full build on Modified1

18×9 ET-12

Documented on a 2015 Chevrolet Silverado 1500 build — observed custom fitment, not a universal fit guarantee.

Tires: 34/12.5R18

Suspension: Suspension Lift 4"
Fenders / trimming: Minor Plastic Trimming
Rubbing: This specific documented build reports: Slight rub at full turn

Compared with OEM

Compared with the 18×8.5 ET24 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 42.4 mm farther toward fender (more outward poke)
Inner edge 29.6 mm farther from suspension (more inner clearance)
Width +0.5" vs OEM

View full build on Modified1

17×9 ET20

Documented on a 2015 Chevrolet Silverado 1500 build — observed custom fitment, not a universal fit guarantee.

Tires: 265/70R17

Compared with OEM

Compared with the 17×8 ET24 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 16.7 mm farther toward fender (more outward poke)
Inner edge 8.7 mm closer to suspension (less inner clearance)
Width +1" vs OEM

View full build on Modified1

Staggered · 26×10 / Rear unknown

Documented on a 2015 Chevrolet Silverado 1500 build — observed custom fitment, not a universal fit guarantee.

Wheel: Giovanna Dramuno 6

Front: 26×10 · 295/30R26
Rear: —

Compared with OEM

Compared with the 22×9 ET24 OEM configuration. Calculated geometry only — not fit confirmation.

Diameter +4" vs OEM

View full build on Modified1

Documented diameter × width pages

Aftermarket wheel sizes with enough documented Modified1 builds for this model year. Evidence pages — not fit guarantees.

Compare your own setup

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

OEM baseline

Open full fitment calculator

More specs for the 2015 Chevrolet Silverado 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.