tirewheelguide

1968 Chevrolet C10 tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 6x139.7 on every 1968 trim.

Tires for the 1968 Chevrolet C10

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

  1. 205/75R15 Best-rated standard on 5 trims
    Check price on Amazon · 205/75R15
  2. 215/75R15 Best-rated optional on 5 trims
    Check price on Amazon · 215/75R15
  3. 225/75R15 Best-rated optional on 5 trims
    Check price on Amazon · 225/75R15

Also listed: 6.50xR16

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Trims sold in 1968
5
Generation
II

5 trims sold in 1968

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

Chevrolet C10 II

1967–1972 5 trims
C10 250cid +1 variant 120 hp · 4.1L I6 205/75R15 4 fitments

Same tires and wheels on: 292cid

Generation
II · 1967–1972
Power
120 hp
Engine
4.1L I6, Petrol
Center bore
108.1 mm
Bolt pattern
6x139.7
Thread
7/16" - 20 UNF
Check price on Amazon · 205/75R15 Wheels 15x5.5 · 6x139.7 · 108.1 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
205/75R15Rim 15x5.5 6x139.7–
215/75R15Rim 15x5.5 6x139.7–
225/75R15Rim 15x6 6x139.7–
6.50x R16Rim 16x5 6x139.7–
C10 307cid +2 variants 150 hp · 5.0L V8 205/75R15 4 fitments

Same tires and wheels on: 327cid, 396cid

Generation
II · 1967–1972
Power
150 hp
Engine
5.0L V8, Petrol
Center bore
108.1 mm
Bolt pattern
6x139.7
Thread
7/16" - 20 UNF
Check price on Amazon · 205/75R15 Wheels 15x5.5 5.5J · 6x139.7 · 108.1 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
205/75R15Rim 15x5.5 5.5J 6x139.7–
215/75R15Rim 15x5.5 5.5J 6x139.7–
225/75R15Rim 15x6 6J 6x139.7–
6.50x R16Rim 16x5 5J 6x139.7–
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 1968
5
Generation
II
Other years
All years (1967–1987)

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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