1978 Pontiac Phoenix tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x120.65 on every 1978 trim.

Tires for the 1978 Pontiac Phoenix

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

195/75R14 Best-rated standard on 2 trims

Check price on Amazon · 195/75R14
205/70R14 Best-rated standard on 1 trim · optional on 2

Check price on Amazon · 205/70R14
225/60R15 Best-rated optional on 3 trims

Check price on Amazon · 225/60R15

Also listed: 235/60R15

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Trims sold in 1978: 3
Generation: X
Other years: 1977
1978
1979
1980
1981
1982
1983
1984
All years (1977–1984)

3 trims sold in 1978

Open a trim for its tire and rim sizes, bolt pattern and tire pressure. Trims with the same tires and wheels share a row.

Pontiac Phoenix X

1977–1979 3 trims

Phoenix 2.5 +1 variant 110 hp · I4 195/75SR14 3 fitments

Same tires and wheels on: 3.8

Generation: -body I · 1977–1979
Power: 110 hp
Engine: I4, Petrol
Center bore: 70.3 mm
Bolt pattern: 5x120.65
Thread: M12 x 1.5

Check price on Amazon · 195/75R14 Wheels 14x6 ET8 · 5x120.65 · 70.3 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
195/75SR14	Rim 14x6 ET8 ~~5x120.65~~	30 psi
205/70SR14	Rim 14x7 ET12 ~~5x120.65~~	30 psi
225/60HR15	Rim 15x7 ET0 ~~5x120.65~~	33 psi

Phoenix 5.0 188 hp · V8 205/70SR14 3 fitments

Generation: -body I · 1977–1979
Power: 188 hp
Engine: V8, Petrol
Center bore: 70.3 mm
Bolt pattern: 5x120.65
Thread: M12 x 1.5

Check price on Amazon · 205/70R14 Wheels 14x7 ET12 · 5x120.65 · 70.3 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
205/70SR14	Rim 14x7 ET12 ~~5x120.65~~	30 psi
225/60HR15	Rim 15x7 ET12 ~~5x120.65~~	33 psi
235/60HR15	Rim 15x7 ET0 ~~5x120.65~~	33 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.

Trims sold in 1978: 3
Generation: X
Other years: 1977
1978
1979
1980
1981
1982
1983
1984
All years (1977–1984)

Considering a different size?

Compare your current tire size with the one you want: diameter change, ground clearance and speedometer error.

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