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

Check the tables below for every tire size, wheel size, bolt pattern (PCD), rim offset and tire pressure fitted to the 1978 Pontiac Phoenix.

1978 Pontiac Phoenix tire sizes

Bolt pattern

Other years

Fitment tables

Open a trim for its factory package and every alternative size, front and rear.

1977 – 1979 USA market 3 trims

110 hp · I4 195/75 SR14 3 fitments

GenerationX-body I 1977–1979

Power110 hp

EngineI4, Petrol

Center bore70.3 mm

PCD5x120.65

ThreadM12 x 1.5

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

139 hp · V6 195/75 SR14 3 fitments

GenerationX-body I 1977–1979

Power139 hp

EngineV6, Petrol

Center bore70.3 mm

PCD5x120.65

ThreadM12 x 1.5

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

188 hp · V8 205/70 SR14 3 fitments

GenerationX-body I 1977–1979

Power188 hp

EngineV8, Petrol

Center bore70.3 mm

PCD5x120.65

ThreadM12 x 1.5

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

Reading the table

OE fitment: The package fitted at the factory for that trim.
Alternative: A size the car accepts without modification — plus-sizing, winter setups or optional wheels.
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.