2011 Ford Mustang Wheel Offset

ET40 · ET50 · ET44 · ET42

Quick specs

OEM offset: ET40 · ET50 · ET44 · ET42
Wheel size: 7x17 · 8.5x19 · 8x18 · 9x19
Backspacing: 5.07 in · 6.22 in · 5.73 in · 6.15 in
Bolt pattern: 5×114.3
Center bore: 70.5 mm
Tire size: Multiple — see configurations

OEM configurations

Configuration	Front	Rear	Offset	Backspacing	Tire	Bolt pattern	Center bore	Thread
3.7Ti · 3.7L, V6, Petrol	7x17	—	ET40	5.07 in	215/65R17	5x114.3	70.5 mm	1/2" - 20 UNF
3.7Ti · 3.7L, V6, Petrol	7x17	—	ET40	5.07 in	225/60R17	5x114.3	70.5 mm	1/2" - 20 UNF
3.7Ti · 3.7L, V6, Petrol	8.5x19	—	ET50	6.22 in	255/40R19	5x114.3	70.5 mm	1/2" - 20 UNF
3.7Ti · 3.7L, V6, Petrol	8x18	9x18	ET44 / ET51	5.73 in	235/50R18	5x114.3	70.5 mm	1/2" - 20 UNF
5.0Ti GT · 5.0L, V8, Petrol	8x18	8.5x19	ET44 / ET50	5.73 in	235/50R18 / 245/45R19	5x114.3	70.5 mm	1/2" - 20 UNF
5.0Ti GT · 5.0L, V8, Petrol	9x19	8.5x19	ET42 / ET50	6.15 in	255/40R19 / 245/45R19	5x114.3	70.5 mm	1/2" - 20 UNF

See how a different wheel would sit See wheel backspacing

What happens if you change the offset?

Compare your own setup

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

OEM baseline

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Wheels and hardware for this vehicle

Lug hardware

Wheel locks

Real-World 2011 Ford Mustang 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 — 30 documented builds
19-inch — 14 documented builds
18-inch — 6 documented builds
17-inch — 2 documented builds
22-inch — 1 documented build

Showing 36 of 53 documented builds in this view.

Diameter

Staggered · 20×10.5 ET30 / Rear unknown

Documented on a 2011 Ford Mustang build — observed custom fitment, not a universal fit guarantee.

Wheel: XXR 521

Front: 20×10.5 ET30 · 275/35R20
Rear: —

Compared with OEM

Compared with the 19×8.5 ET50 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 45.4 mm farther toward fender (more outward poke)
Inner edge 5.4 mm closer to suspension (less inner clearance)
Width +2" vs OEM
Diameter +1" vs OEM

View full build on Modified1

Staggered · 20×10 ET40 / Rear unknown

Documented on a 2011 Ford Mustang build — observed custom fitment, not a universal fit guarantee.

Wheel: Niche Targa

Front: 20×10 ET40 · 295/35R20
Rear: —

Compared with OEM

Compared with the 19×8.5 ET50 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 29.1 mm farther toward fender (more outward poke)
Inner edge 9.1 mm closer to suspension (less inner clearance)
Width +1.5" vs OEM
Diameter +1" vs OEM

View full build on Modified1

Staggered · 20×9 ET35 / 20×10.5 ET40

Documented on a 2011 Ford Mustang build — observed custom fitment, not a universal fit guarantee.

Wheel: STR 607

Front: 20×9 ET35 · 255/35R20
Rear: 20×10.5 ET40 · 295/30R20

Compared with OEM

Compared with the 19×8.5 ET50 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 21.4 mm farther toward fender (more outward poke)
Inner edge 8.6 mm farther from suspension (more inner clearance)
Width +0.5" vs OEM
Diameter +1" vs OEM

View full build on Modified1

Staggered · 19×8.5 ET30 / 19×10 ET35

Documented on a 2011 Ford Mustang build — observed custom fitment, not a universal fit guarantee.

Wheel: STR 607

Front: 19×8.5 ET30 · 245/40R19
Rear: 19×10 ET35 · 285/35R19

Compared with OEM

Compared with the 19×8.5 ET50 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 20 mm farther toward fender (more outward poke)
Inner edge 20 mm farther from suspension (more inner clearance)

View full build on Modified1

Staggered · 20×9 ET38 / 20×10.5 ET42

Documented on a 2011 Ford Mustang build — observed custom fitment, not a universal fit guarantee.

Wheel: Vossen VVSCV3

Front: 20×9 ET38 · 275/35R20
Rear: 20×10.5 ET42 · 305/35R20

Compared with OEM

Compared with the 19×8.5 ET50 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 18.4 mm farther toward fender (more outward poke)
Inner edge 5.6 mm farther from suspension (more inner clearance)
Width +0.5" vs OEM
Diameter +1" vs OEM

View full build on Modified1

Staggered · 20×9 ET25 / 20×10.5 ET45

Documented on a 2011 Ford Mustang build — observed custom fitment, not a universal fit guarantee.

Wheel: Concavo CWS5

Front: 20×9 ET25
Rear: 20×10.5 ET45

Compared with OEM

Compared with the 19×8.5 ET50 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 31.4 mm farther toward fender (more outward poke)
Inner edge 18.6 mm farther from suspension (more inner clearance)
Width +0.5" vs OEM
Diameter +1" vs OEM

View full build on Modified1

Staggered · 20×10.5 ET5 / 20×12 ET25

Documented on a 2011 Ford Mustang build — observed custom fitment, not a universal fit guarantee.

Wheel: Forgestar F14

Front: 20×10.5 ET5 · 275/35R20
Rear: 20×12 ET25 · 315/35R20

Compared with OEM

Compared with the 19×8.5 ET50 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 70.4 mm farther toward fender (more outward poke)
Inner edge 19.6 mm farther from suspension (more inner clearance)
Width +2" vs OEM
Diameter +1" vs OEM

View full build on Modified1

Staggered · 19×10 ET33 / 19×11 ET40

Documented on a 2011 Ford Mustang build — observed custom fitment, not a universal fit guarantee.

Wheel: Forgestar f14

Front: 19×10 ET33 · 255/40R19
Rear: 19×11 ET40 · 285/40R19

Compared with OEM

Compared with the 19×8.5 ET50 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 36.1 mm farther toward fender (more outward poke)
Inner edge 2.1 mm closer to suspension (less inner clearance)
Width +1.5" vs OEM

View full build on Modified1

Staggered · 19×9.5 ET22 / Rear unknown

Documented on a 2011 Ford Mustang build — observed custom fitment, not a universal fit guarantee.

Wheel: Varrstoen ES2

Front: 19×9.5 ET22 · 245/45R19
Rear: — · 275/40R19

Compared with OEM

Compared with the 19×8.5 ET50 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 40.7 mm farther toward fender (more outward poke)
Inner edge 15.3 mm farther from suspension (more inner clearance)
Width +1" vs OEM

View full build on Modified1

Staggered · 20×8.5 ET35 / 20×10 ET43

Documented on a 2011 Ford Mustang build — observed custom fitment, not a universal fit guarantee.

Wheel: Avant Garde M510

Front: 20×8.5 ET35 · 225/35R20
Rear: 20×10 ET43 · 305/35R20

Compared with OEM

Compared with the 19×8.5 ET50 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 15 mm farther toward fender (more outward poke)
Inner edge 15 mm farther from suspension (more inner clearance)
Diameter +1" vs OEM

View full build on Modified1

Staggered · 19×9.5 ET45 / Rear unknown

Documented on a 2011 Ford Mustang build — observed custom fitment, not a universal fit guarantee.

Wheel: Breyton GTS-AV 25

Front: 19×9.5 ET45 · 275/35R19
Rear: —

Compared with OEM

Compared with the 19×8.5 ET50 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 17.7 mm farther toward fender (more outward poke)
Inner edge 7.7 mm closer to suspension (less inner clearance)
Width +1" vs OEM

View full build on Modified1

Staggered · 19×9.5 ET33 / 19×11 ET55

Documented on a 2011 Ford Mustang build — observed custom fitment, not a universal fit guarantee.

Wheel: Forgestar CF5

Front: 19×9.5 ET33 · 275/35R19
Rear: 19×11 ET55 · 305/30R19

Compared with OEM

Compared with the 19×8.5 ET50 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 29.7 mm farther toward fender (more outward poke)
Inner edge 4.3 mm farther from suspension (more inner clearance)
Width +1" vs OEM

View full build on Modified1

More specs for the 2011 Ford Mustang

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.