Skip to content
tirewheelguide.com

1968 Ford F-100 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 1968 Ford F-100.

1968 Ford F-100 tire sizes

225/75RS15235/70RS15
Bolt pattern
Other years
19641965196619671968196919701971 All 1953–1983
Fitment tables

4 trims sold in 1968

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

Ford F-100 V

1967 – 1969 USA market 4 trims

F-100 240cid

150 hp · 3.9L I6 7.75x B15 6 fitments
GenerationV 1967–1969
Power150 hp
Engine3.9L I6, Petrol
Center bore108 mm
PCD5x139.7
Thread1/2" - 20 UNF
Tire sizeRim size and bolt patternPressure, psiPrices
7.75x B1515x5.5 ET16 5x139.7–TiresRims
8.15x B1515x5.5 ET16 5x139.7–TiresRims
8.15x B1515x5.5 ET16 5x139.7–TiresRims
205x SR1515x5.5 ET16 5x139.7–TiresRims
225/75 SR1515x5.5 ET16 5x139.7–TiresRims
6.50x B1616x5 ET16 5x139.7–TiresRims

F-100 300cid

170 hp · 4.9L I6 7.75x B15 6 fitments
GenerationV 1967–1969
Power170 hp
Engine4.9L I6, Petrol
Center bore108 mm
PCD5x139.7
Thread1/2" - 20 UNF
Tire sizeRim size and bolt patternPressure, psiPrices
7.75x B1515x5.5 ET16 5x139.7–TiresRims
8.15x B1515x5.5 ET16 5x139.7–TiresRims
8.15x B1515x5.5 ET16 5x139.7–TiresRims
205x SR1515x5.5 ET16 5x139.7–TiresRims
225/75 SR1515x5.5 ET16 5x139.7–TiresRims
6.50x B1616x5 ET16 5x139.7–TiresRims

F-100 360cid

215 hp · 5.9L V8 7.75x B15 6 fitments
GenerationV 1967–1969
Power215 hp
Engine5.9L V8, Petrol
Center bore108 mm
PCD5x139.7
Thread1/2" - 20 UNF
Tire sizeRim size and bolt patternPressure, psiPrices
7.75x B1515x5.5 ET16 5x139.7–TiresRims
8.15x B1515x5.5 ET16 5x139.7–TiresRims
8.15x B1515x5.5 ET16 5x139.7–TiresRims
225/75 SR1515x5.5 ET16 5x139.7–TiresRims
235/70 SR1515x6 ET0 5x139.7–TiresRims
6.50x B1616x5 ET16 5x139.7–TiresRims

F-100 390cid

255 hp · 6.4L V8 7.75x B15 6 fitments
GenerationV 1967–1969
Power255 hp
Engine6.4L V8, Petrol
Center bore108 mm
PCD5x139.7
Thread1/2" - 20 UNF
Tire sizeRim size and bolt patternPressure, psiPrices
7.75x B1515x5.5 ET16 5x139.7–TiresRims
8.15x B1515x5.5 ET16 5x139.7–TiresRims
8.15x B1515x5.5 ET16 5x139.7–TiresRims
225/75 SR1515x5.5 ET16 5x139.7–TiresRims
235/70 SR1515x6 ET0 5x139.7–TiresRims
6.50x B1616x5 ET16 5x139.7–TiresRims
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.

Open the size calculator
Recent articles

Guides worth reading first

All articles
Basics

How to read a tire sidewall

Reading a tire sidewall is easy. Find out what the size, load index, speed rating and date code mean.

Continue reading
Guide

Everything you need to know about tire tread depth

Tire tread depth is an important factor in keeping your vehicle safe — how to measure it and when to replace.

Continue reading
Gear

Best supercapacitor jump starter review

We tested seven supercapacitor jump starters to find the ones worth buying.

Continue reading