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1969 Oldsmobile 98 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 1969 Oldsmobile 98.

1969 Oldsmobile 98 tire sizes

Bolt pattern
Fitment tables

2 trims sold in 1969

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

Oldsmobile 98 VIII C-body

1965 – 1970 USA market 2 trims

98 7.0

362 hp · V8 8.55x B14 3 fitments
GenerationVIII C-body 1965–1970
Power362 hp
EngineV8, Petrol
Center bore78.3 mm
PCD5x127
Thread1/2" - 20 UNF
Tire sizeRim size and bolt patternPressure, psiPrices
8.55x B14 5x127–Tires
8.85x B14 5x127–Tires
8.70x B15 5x127–Tires

98 7.5

365 hp · V8 8.55x B14 3 fitments
GenerationVIII C-body 1965–1970
Power365 hp
EngineV8, Petrol
Center bore78.3 mm
PCD5x127
Thread1/2" - 20 UNF
Tire sizeRim size and bolt patternPressure, psiPrices
8.55x B14 5x127–Tires
8.85x B14 5x127–Tires
8.70x B15 5x127–Tires
Reading the table

What these columns mean

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.

Considering a different size?

Run your OE size against the one you want to see diameter change, ground clearance and speedometer error.