2008 GMC Envoy tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 6x127 on every 2008 trim.

Tires for the 2008 GMC Envoy

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

245/65R17 Best-rated standard on 2 trims

Check price on Amazon · 245/65R17
255/60R18 Best-rated optional on 2 trims

Check price on Amazon · 255/60R18
245/60R18 Best-rated optional on 1 trim

Check price on Amazon · 245/60R18

Also listed: 265/55R18

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Trims sold in 2008: 2
Generation: GMT360
Other years: 2002
2003
2004
2005
2006
2007
2008
2009
All years (1998–2009)

2 trims sold in 2008

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

GMC Envoy GMT360

2002–2009 2 trims

Envoy 4.2i 291 hp · 4.2L I6 245/65R17 112V 3 fitments

Generation: GMT360 · 2002–2009
Power: 291 hp
Engine: 4.2L I6, Petrol
Center bore: 78.3 mm
Bolt pattern: 6x127
Thread: M12 x 1.5

Check price on Amazon · 245/65R17 Wheels 17x7 ET50 · 6x127 · 78.3 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
245/65R17 112V	Rim 17x7 ET50 ~~6x127~~	35 psi
245/60R18 112V	Rim 18x7.5 ET50 ~~6x127~~	35 psi
255/60R18 110V	Rim 18x8 ET45 ~~6x127~~	35 psi

How to read 112V: 112 is the load index (up to 2,469 lb / 1,120 kg per tire) and V the speed rating (up to 149 mph / 240 km/h). ET50 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

Envoy 5.3i 295 hp · 5.3L V8 245/65R17 3 fitments

Generation: GMT360 · 2002–2009
Power: 295 hp
Engine: 5.3L V8, Petrol
Center bore: 78.3 mm
Bolt pattern: 6x127
Thread: M12 x 1.5

Check price on Amazon · 245/65R17 Wheels 17x7 ET50 · 6x127 · 78.3 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
245/65R17	Rim 17x7 ET50 ~~6x127~~	35 psi
255/60R18	Rim 18x7.5 ET48 ~~6x127~~	35 psi
265/55R18	Rim 18x8 ET45 ~~6x127~~	36 psi

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.
Thread size: Lug bolt or nut thread — needed when buying aftermarket fasteners.