1978 Pontiac Grand Prix tire and wheel sizes

Find out what wheels and tires fit the 1978 Pontiac Grand Prix

Check the tables below to get all tire sizes, wheel sizes, bolt patterns (PCD), rims offset, and tire pressure.

The 1978 Pontiac Grand Prix tire sizes are 205/70HR15, 195/75SR14.

The 1978 Pontiac Grand Prix bolt pattern is 5x120.65. For more info check the size tables below.

Vehicle generations

A-body 1978 - 1981

Pontiac Grand Prix A-body 1978 - 1981

Grand Prix 3.8Grand Prix 4.1Grand Prix 4.3Grand Prix 5.0

1978 Pontiac Grand Prix 3.8

Generation: A-body 1978 - 1981

Power: N/A

Engine: V6 , Petrol

Center Bore (DIA): 70.3 mm

PCD: 5x120.65

Thread Size: 7/16" - 20 UNF

Tire size Rim size and Bolt pattern Tire Pressure
195/75 SR14
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14x6 ET8 5x120.65
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205/70 HR15
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15x6 ET8 5x120.65
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1978 Pontiac Grand Prix 4.1

Generation: A-body 1978 - 1981

Power: N/A

Engine: V6 , Petrol

Center Bore (DIA): 70.3 mm

PCD: 5x120.65

Thread Size: 7/16" - 20 UNF

Tire size Rim size and Bolt pattern Tire Pressure
195/75 SR14
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14x6 ET8 5x120.65
Check rims price
205/70 HR15
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15x6 ET8 5x120.65
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1978 Pontiac Grand Prix 4.3

Generation: A-body 1978 - 1981

Power: N/A

Engine: V8 , Petrol

Center Bore (DIA): 70.3 mm

PCD: 5x120.65

Thread Size: 7/16" - 20 UNF

Tire size Rim size and Bolt pattern Tire Pressure
195/75 SR14
Check tires price
14x6 ET8 5x120.65
Check rims price
205/70 HR15
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15x6 ET8 5x120.65
Check rims price

1978 Pontiac Grand Prix 5.0

Generation: A-body 1978 - 1981

Power: N/A

Engine: V8 , Petrol

Center Bore (DIA): 70.3 mm

PCD: 5x120.65

Thread Size: 7/16" - 20 UNF

Tire size Rim size and Bolt pattern Tire Pressure
195/75 SR14
Check tires price
14x6 ET8 5x120.65
Check rims price
205/70 HR15
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15x6 ET8 5x120.65
Check rims price

Other Pontiac Grand Prix production years

1978197919801981198219831984198519861987198819891990199119921993199419951996199719981999200020012002200320042005200620072008

Additional info:

Cars with 5x120.65 bolt pattern


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