2006 Ford Mustang Wheel Offset

Quick specs

Wheel size: 7x16 · 7.5x16 · 8x17 · 8x18
Offset: ET39 · ET40 · ET45
Backspacing: 5.04 in · 5.32 in · 5.77 in
Bolt pattern: 5×114.3
Center bore: 70.5 mm
Thread: M12×1.75, 1/2"-20 UNF
Tire size: 215/65R16 · 235/60R16 · 235/55R17 · 235/50R18

OEM configurations

Configuration	Front	Rear	Offset	Backspacing	Tire	Bolt pattern	Center bore	Thread
4.0i · 4.0L, V6, Petrol	7x16	—	ET39	5.04 in	215/65R16	5x114.3	70.5 mm	1/2" - 20 UNF
4.0i · 4.0L, V6, Petrol	7.5x16	—	ET40	5.32 in	235/60R16	5x114.3	70.5 mm	1/2" - 20 UNF
4.0i · 4.0L, V6, Petrol	8x17	—	ET45	5.77 in	235/55R17	5x114.3	70.5 mm	1/2" - 20 UNF
4.6i · 4.6L, V8, Petrol	8x17	8x18	ET45	5.77 in	235/55R17 / 235/50R18	5x114.3	70.5 mm	1/2" - 20 UNF
4.6i · 4.6L, V8, Petrol	8x18	8x18	ET45	5.77 in	235/50R18	5x114.3	70.5 mm	1/2" - 20 UNF

Wheels and hardware

Lug hardware

Wheel locks

Real-World 2006 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:

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

3 documented builds.

Staggered · 19×9.5 ET21 / 19×9.5 ET29

Documented on a 2006 Ford Mustang build — observed custom fitment, not a universal fit guarantee.

Wheel: RoJa R2-5

Front: 19×9.5 ET21 · 255/40R19
Rear: 19×9.5 ET29 · 275/40R19

Compared with OEM

Compared with the 18×8 ET45 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 43 mm farther toward fender (more outward poke)
Inner edge 5 mm farther from suspension (more inner clearance)
Width +1.5" vs OEM
Diameter +1" vs OEM

View full build on Modified1

Staggered · 20×9 ET0 / 20×10 ET20

Documented on a 2006 Ford Mustang build — observed custom fitment, not a universal fit guarantee.

Wheel: Saleen

Front: 20×9 ET0 · 235/35R20
Rear: 20×10 ET20 · 255/35R20

Compared with OEM

Compared with the 18×8 ET45 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 57.7 mm farther toward fender (more outward poke)
Inner edge 32.3 mm farther from suspension (more inner clearance)
Width +1" vs OEM
Diameter +2" vs OEM

View full build on Modified1

18×10 ET15

Documented on a 2006 Ford Mustang build — observed custom fitment, not a universal fit guarantee.

Tires: 245/45R18

Compared with OEM

Compared with the 18×8 ET45 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 55.4 mm farther toward fender (more outward poke)
Inner edge 4.6 mm farther from suspension (more inner clearance)
Width +2" vs OEM

View full build on Modified1

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 2006 Ford Mustang

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.