2020 Ford Mustang Shelby GT500 tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x114.3 on every 2020 trim.

Tires for the 2020 Ford Mustang Shelby GT500

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

305/30R20 front + 315/30R20 rear Best-rated standard on 1 trim

Check price on Amazon · 305/30R20 front Check price on Amazon · 315/30R20 rear

TireWheelGuide may earn a commission from purchases made through these links.

Trims sold in 2020: 1
Generation: III
Other years: 2011
2012
2013
2014
2020
2021
2022
2023
All years (1967–2023)

1 trim sold in 2020

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

Ford Mustang Shelby GT500 III

2020–2023 1 trim

Mustang Shelby GT500 5.2 SC 760 hp · 5.2L V8 305/30R20 103Y / 315/30R20 104Y 2 fitments

Generation: III · 2020–2023
Power: 760 hp
Engine: 5.2L V8, Petrol
Center bore: 70.5 mm
Bolt pattern: 5x114.3
Thread: M14 x 1.5

Check price on Amazon · 305/30R20 Check price on Amazon · 315/30R20 Wheels 20x11 ET32 · 5x114.3 · 70.5 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
Front305/30R20 103Y	Rim 20x11 ET32 ~~5x114.3~~	32 psi
Rear315/30R20 104Y	Rim 20x11.5 ET50 ~~5x114.3~~	32 psi
Front305/30R20 103Y	Rim 20x11 ET32 ~~5x114.3~~	32 psi
Rear315/30R20 104Y	Rim 20x11 ET32 ~~5x114.3~~	32 psi

How to read 103Y: 103 is the load index (up to 1,929 lb / 875 kg per tire) and Y the speed rating (up to 186 mph / 300 km/h). ET32 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.