2008 Ford Expedition Tire Sizes
The listed tire sizes for the 2008 Ford Expedition are 255/70R18, 265/70R17, and 275/55R20. These are size designations, not tire-pressure or load ratings, and the list alone does not identify which size is fitted to a particular vehicle.
The sizes differ in width, sidewall proportion, and wheel diameter, so use the exact size specified for your Expedition rather than choosing among them by appearance. The facts provide sizes for the model year but do not connect any size to a particular trim or engine. Check the driver-side door jamb label or the owner's manual to confirm the correct fitment for your vehicle; confirm any pressure or load figure there as well.
- 255/70R18 · 265/70R17 · 275/55R20
- OEM tire sizes
- Distinct OEM sizes255/70R18 · 265/70R17 · 275/55R20
- Calculated overall diameter31.6–32.1 in
Calculated from catalog valuesOverall diameter is calculated from the stored OEM size string.
| Configuration | Wheel | Tire | Overall diameter | Bolt |
|---|---|---|---|---|
| 5.4i | 7.5×17 | 265/70R17 | 31.6 in | 6x135 |
| 5.4i | 8×17 | 265/70R17 | 31.6 in | 6x135 |
| 5.4i | 8.5×18 | 255/70R18 | 32.1 in | 6x135 |
| 5.4i | 8.5×20 | 275/55R20 | 31.9 in | 6x135 |
Compare a size
This figure is calculated from stored catalog values, not a separate manufacturer field.