The 2008 Ford Trucks F-150 STX sits in the era when Ford’s full-size pickup balanced everyday work duty with a more modern mix of styling, comfort, and wheel options. For many owners, that means tire selection starts with confirming whether the truck is a 4x2 or 4x4 and whether it carries 17-inch or 18-inch wheels. This F-150 STX uses radial tire fitments across four primary sizes: 255/65R17, 265/60R18, 255/70R17, and 275/65R18. Available product choices lean toward an all-terrain, raised white letter presentation in the supported sizes with listed products. Getting the right tire comes down to matching the exact sub-model, wheel diameter, and intended use before comparing tread style and load-related specifications.
Which Tire Size Is Right for The 2008 Ford Trucks F-150 STX
The 2008 Ford Trucks F-150 STX uses four primary tire sizes, and the correct one depends first on whether the truck is a 4x2 or 4x4 and second on whether it has 17-inch or 18-inch wheels. Because both sub-model and rim diameter change the fitment, the first step is confirming the truck’s exact configuration before comparing tire options within the proper size.
255/65R17 is a metric radial size with a 255-millimeter section width, a 65-series aspect ratio, radial construction, and a 17-inch rim diameter. On the 2008 Ford Trucks F-150 STX, this size is one of the 17-inch fitments and suits owners who need to stay with that wheel diameter. Available product coverage in this size includes a BFGoodrich All-Terrain T/A KO2 with raised white letters, giving it a more aggressive truck presentation. This size is worth evaluating when the truck retains its 17-inch wheel setup and the goal is to balance correct fitment with all-terrain character.
265/60R18 is a metric radial size that uses a 265-millimeter section width, a 60-series profile, and an 18-inch wheel diameter. For the 2008 Ford Trucks F-150 STX, it serves as one of the 18-inch primary fitments, so wheel diameter has to be confirmed before considering it. Its lower-profile format compared with the 17-inch options reflects a different wheel-and-tire package rather than a universal substitute across all STX trucks. This size makes sense when the truck is equipped with the correct 18-inch wheels and the aim is to preserve the intended overall fitment package for that configuration.
255/70R17 is a metric radial with a 255-millimeter section width, a 70-series aspect ratio, radial construction, and a 17-inch rim diameter. On the 2008 Ford Trucks F-150 STX, this size is tied to a different configuration than the 255/65R17 fitment, so it should be selected only after the exact sub-model and wheel setup are verified. Its profile and overall dimensions place it in a distinct fitment role rather than a casual swap from another STX tire size. This is the size to consider when the truck’s original wheel diameter and sub-model call for a 17-inch tire with this taller metric profile.
275/65R18 is a metric radial size with a 275-millimeter section width, a 65-series aspect ratio, and fitment on an 18-inch rim. For the 2008 Ford Trucks F-150 STX, it is one of the larger primary fitments and should be matched to the correct sub-model and wheel diameter before any product comparison begins. In the available product range, this size includes a BFGoodrich All-Terrain T/A KO2 with raised white letters and a truck-oriented all-terrain character. It is the right size to evaluate when the truck already carries the proper 18-inch setup and needs a tire that matches that larger factory-style fitment path.
Tire fitment on the 2008 Ford Trucks F-150 STX changes by sub-model, so identifying whether the truck is a 4x2 or 4x4 matters before choosing a size. That distinction also separates the 17-inch and 18-inch fitment paths, which keeps wheel confirmation central to the buying decision.
1
2008 Ford Trucks F-150 STX 4x2
The 2008 Ford Trucks F-150 STX 4x2 uses a different tire-fitment group than the 4x4, with 17-inch and 18-inch radial options tied to that configuration. Tire selection starts by confirming which wheel diameter is on the truck, then comparing the available tire style and specification differences within the proper size.
The 2008 Ford Trucks F-150 STX 4x4 uses its own set of 17-inch and 18-inch radial fitments, separate from the 4x2. That means the right choice depends on matching the truck’s drivetrain configuration and actual wheel size before considering tread style, load-related specs, or overall tire presentation.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 2008 Ford Trucks F-150 STX Tires for Sale
Available products for supported 17-inch and 18-inch F-150 STX sizes center on BFGoodrich All-Terrain T/A KO2 tires with radial construction and raised white letter styling. The main comparison points are the correct tire size for the truck, rim-width compatibility, load-related specifications, and the all-terrain presentation.
These FAQs focus on the exact tire sizes used on the 2008 Ford Trucks F-150 STX, how 4x2 and 4x4 fitment differs, what the metric sizes mean, and what to inspect before putting the truck back on the road.
Tire Size & Fitment
What tire size fits a 2008 Ford Trucks F-150 STX?
The 2008 Ford Trucks F-150 STX uses four primary radial tire sizes: 255/65R17, 265/60R18, 255/70R17, and 275/65R18. The correct size depends on the truck’s exact sub-model, with the 4x2 using 255/65R17 or 265/60R18 and the 4x4 using 255/70R17 or 275/65R18.
Choosing the right one starts with confirming both the drivetrain configuration and the wheel diameter actually on the truck. An STX with 17-inch wheels needs a different tire than one with 18-inch wheels, and a 4x2 fitment should not be assumed to match a 4x4 simply because the trucks share the same model name.
What size rim does a 2008 Ford Trucks F-150 STX use?
A 2008 Ford Trucks F-150 STX uses either a 17-inch or 18-inch rim, depending on the tire size and sub-model. The 17-inch fitments are 255/65R17 and 255/70R17, while the 18-inch fitments are 265/60R18 and 275/65R18.
That makes wheel diameter the first thing to verify before ordering tires, especially on a truck that may have had wheels changed over time. Checking the tire sidewall and measuring the wheel if needed helps avoid crossing a 17-inch tire with an 18-inch wheel, which is one of the most basic but most important fitment mistakes to avoid.
Do all 2008 Ford Trucks F-150 STX sub-models use the same tire size?
No. The 2008 Ford Trucks F-150 STX does not use one universal tire size across all sub-models. The 4x2 uses 255/65R17 or 265/60R18, while the 4x4 uses 255/70R17 or 275/65R18, so fitment varies by configuration.
That difference matters because the tire size is tied to both the sub-model and the wheel diameter. Before comparing brands or tread styles, confirm whether the truck is a 4x2 or 4x4 and verify the wheel size now on the vehicle, especially if it has seen wheel, suspension, or appearance changes since new.
Choosing the Right Tire
What should I consider when choosing a tire for a 2008 Ford Trucks F-150 STX?
Start with the exact tire size that matches the truck’s sub-model and wheel diameter, since the 2008 Ford Trucks F-150 STX uses both 17-inch and 18-inch fitments. From there, compare construction, tread type, load-related specifications, and whether the tire’s overall character suits how the truck is actually driven.
A truck used for mixed pavement and light off-road duty may call for a different style of tire than one used mainly on-road. It also helps to confirm wheel width, current tire clearance, and the condition of suspension and steering components so the selected tire matches the truck’s setup instead of just its model name.
What sidewall styles are available for 2008 Ford Trucks F-150 STX tires?
The available supported products for the 2008 Ford Trucks F-150 STX include RWL sidewalls, which means raised white letter styling. That sidewall treatment appears on the listed BFGoodrich All-Terrain T/A KO2 options in the supported product assortment.
Sidewall style changes the truck’s visual presentation even when the tire size stays the same. Raised white letters give the F-150 STX a more traditional truck and SUV appearance, so the choice comes down to whether that look matches the vehicle’s intended style as closely as the tire’s fitment and service requirements do.
What brands offer tires for the 2008 Ford Trucks F-150 STX?
BFGoodrich is represented in the available product range for supported 2008 Ford Trucks F-150 STX tire sizes. The listed options are from the All-Terrain T/A KO2 series and are offered in radial construction for supported 17-inch and 18-inch fitments.
Brand is only one part of the decision. The more important step is making sure the tire matches the truck’s exact size, wheel diameter, and intended use, then comparing details such as sidewall style, rim-width compatibility, and load-related specifications within the options available for that specific STX configuration.
Restoration & Appearance
Which tire should I choose for a period-style 2008 Ford Trucks F-150 STX?
A period-style 2008 Ford Trucks F-150 STX starts with the correct modern metric radial size for the truck’s exact 4x2 or 4x4 configuration and its 17-inch or 18-inch wheels. Staying with the proper fitment keeps the truck’s stance and wheel-to-tire relationship closer to the way this generation of F-150 was intended to look.
Appearance then comes down to the tire’s visual character within that correct size. An all-terrain pattern with raised white letters gives the truck a more traditional light-truck presentation, but exact originality questions are best checked against vehicle-specific reference material if the goal is a highly faithful restoration rather than a generally era-appropriate look.
How does tire construction affect the appearance of a restored 2008 Ford Trucks F-150 STX?
On a 2008 Ford Trucks F-150 STX, the primary fitments are radial tires, so keeping the truck on the proper radial size preserves the basic look associated with its original era. Construction matters visually because it shapes how the sidewall, tread, and overall tire proportion present on the truck’s 17-inch or 18-inch wheels.
Even within radial fitment, appearance still varies through tread style and sidewall treatment. A raised white letter all-terrain tire creates a stronger truck-oriented statement than a plainer sidewall would, so the right choice depends on whether the restoration is aiming for a clean stock-type look, a period-style truck image, or a more utility-focused presentation.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2008 Ford Trucks F-150 STX?
Yes. Modifications can change how a tire fits on a 2008 Ford Trucks F-150 STX even when the tire size is correct for the original sub-model. Aftermarket wheels, different wheel widths, suspension lifts or lowering, and body or steering changes can all alter clearance requirements.
Any truck that has been modified should be checked at full steering lock and through suspension travel before settling on a tire choice. It is also smart to confirm the actual wheel diameter and width now on the truck, since an STX that left the factory with one fitment may no longer be using the same wheel-and-tire package today.
What should I inspect before driving a 2008 Ford Trucks F-150 STX on new tires?
Before road use, inspect the wheels for the correct diameter and condition, verify that the tires are inflated properly for the application, and make sure there is no interference at the fenders, suspension, or steering components. A quick check of lug hardware, alignment condition, and any unusual wear patterns is also worthwhile.
A 2008 Ford Trucks F-150 STX that has sat for a while deserves extra attention to the rest of the chassis as well. Look over shocks, bushings, ball joints, and brake components so the new tires are not being asked to compensate for worn parts, and recheck clearance after the first few miles of driving.
How should tires on a 2008 Ford Trucks F-150 STX be maintained?
Tires on a 2008 Ford Trucks F-150 STX should be checked regularly for inflation pressure, uneven wear, cuts, bulges, punctures, and sidewall damage. Routine inspections matter whether the truck is driven often or only occasionally, because both mileage and age can affect tire condition.
Maintenance also includes watching for signs that point beyond the tire itself, such as feathering from alignment problems or irregular wear from suspension issues. Keeping the truck stored away from prolonged sun, moisture, and ozone exposure helps on lower-use vehicles, and periodic pressure checks are especially important when the truck spends long stretches parked.
