1998 Ford F-150 Lariat
The 1998 Ford F-150 Lariat tire size and wheel specifications below reflect standard OEM reference fitment data for this trim level.
Detailed tire and wheel breakdown for the 1998 Ford F-150
Tire geometry â 255/70R16
The 255/70R16 fitted to the 1998 Ford F-150 has a section width of 255mm and an aspect ratio of 70%, mounted on a 16-inch rim. That gives a sidewall height of 178.5mm (7.03") and an overall outside diameter of 763.4mm (30.06"). At highway speed this tire completes roughly 417 revolutions per kilometre, which is what your speedometer and odometer are calibrated against.
Plus-sizing window
If you want to upsize wheels on the 1998 Ford F-150 while keeping the speedometer accurate, target a 265/63R17 (plus-one). For a softer ride or winter setup, a 245/78R15 (minus-one) keeps the overall diameter within Âą3% of stock, which is the industry tolerance for ABS and stability control to stay calibrated.
Wheel fitment specs
The 1998 Ford F-150 uses a 5x135 bolt pattern with a 87.1mm hub bore. Safe rim width range for the OEM tire is 6.5J â 7.5J, and offsets in the ET9 â ET19 window will clear suspension and fender without rubbing on most setups.
Tire pressure guidance
Manufacturer-recommended cold tire pressure for the 1998 Ford F-150 is printed on the driver-side door jamb sticker â always defer to that value, not to the maximum pressure printed on the tire sidewall. Check pressure monthly and before long trips; under-inflation by 20% can reduce tread life by 25%.
Fitment Specifications
| Engine & Trim | Tire Size | Rim Size | Offset (ET) |
|---|---|---|---|
| Lariat | 255/70R16 | 16" x 7.0 | ET14 |
Frequently Asked Questions
What tire size does the 1998 Ford F-150 Lariat use?
The 1998 Ford F-150 Lariat uses 255/70R16 tires as standard equipment.
What is the bolt pattern of the 1998 Ford F-150 Lariat?
The 1998 Ford F-150 Lariat has a 5x135 bolt pattern with a center bore of 87.1mm.
What is the wheel offset of the 1998 Ford F-150 Lariat?
The 1998 Ford F-150 Lariat has a wheel offset of ETET14.