2009 Ford Mustang Shelby GT500 tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x114.3 on every 2009 trim.

Tires for the 2009 Ford Mustang Shelby GT500

Sizes most trims come with first. Open your trim below for its exact size.

255/45R18 front + 285/40R18 rear Best-rated standard on 1 trim

Check price on Amazon · 255/45R18 front Check price on Amazon · 285/40R18 rear

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Trims sold in 2009: 1
Generation: II
Other years: 1969
1970
2007
2008
2009
2010
2011
2012
All years (1967–2023)

1 trim sold in 2009

Open a trim for its tire and rim sizes, bolt pattern and tire pressure.

Ford Mustang Shelby GT500 II

2007–2009 1 trim

Mustang Shelby GT500 5.4i 500 hp · V8 255/45R18 99W / 285/40R18 96W 1 fitment

Generation: II · 2007–2009
Power: 500 hp
Engine: V8, Petrol
Center bore: 70.5 mm
Bolt pattern: 5x114.3
Thread: 1/2" - 20 UNF

Check price on Amazon · 255/45R18 Check price on Amazon · 285/40R18 Wheels 18x9.5 ET45 · 5x114.3 · 70.5 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
Front255/45R18 99W	Rim 18x9.5 ET45 ~~5x114.3~~	35 psi
Rear285/40R18 96W	Rim 18x9.5 ET45 ~~5x114.3~~	35 psi

How to read 99W: 99 is the load index (up to 1,709 lb / 775 kg per tire) and W the speed rating (up to 168 mph / 270 km/h). ET45 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres. Compare offsets in the wheel offset calculator.

What these columns mean

Rim size: Rim diameter × width in inches, and the factory offset (ET) in millimetres, e.g. 18x7.5 ET25.
Bolt pattern (PCD): Number of studs and the diameter of the circle they sit on. It must match exactly.
Center bore: Diameter of the hub hole. Larger aftermarket bores need hub-centric rings.
Pressure: Recommended cold inflation pressure for that axle, in psi.
Staggered: A wider tire on the rear axle than the front. Front-to-back rotation is not possible.
Thread size: Lug bolt or nut thread — needed when buying aftermarket fasteners.