The 2006 Ford Trucks F-150 STX sits in the middle of an era when full-size pickups were expected to balance daily road use, light work, and a more assertive stance than earlier generations. On this exact model, tire choice starts with one key distinction: 4x2 and 4x4 trucks do not use the same primary size, even though both fit a 17-inch wheel and both use radial construction. That makes sub-model identification the first step, followed by choosing the right overall look and use case within the available tire options. For an STX owner, the goal is matching the truck's actual wheel setup, ride height, and intended use before settling on a tire.
Which Tire Size Is Right for The 2006 Ford Trucks F-150 STX
The 2006 Ford Trucks F-150 STX uses two primary tire sizes, and the correct one depends on whether the truck is a 4x2 or 4x4. Both sizes are radial tires for 17-inch rims, so the important first step is confirming the exact sub-model rather than assuming every STX uses the same tire. Once that is settled, the decision becomes choosing a tire that suits the truck's road use, stance, and wheel compatibility.
A 255/65R17 tire uses a 255-millimeter section width, a 65-series aspect ratio, radial construction, and a 17-inch rim diameter. On the 2006 Ford Trucks F-150 STX, this size belongs to the 4x2 configuration, making it a fitment-specific choice rather than a universal STX size. Available products in this size can also bring a more defined appearance, such as raised white letter sidewalls, depending on the tire selected. This size is the one to evaluate when the truck remains on its original-type 4x2 wheel setup or when overall fitment needs to stay aligned with that configuration.
A 255/70R17 tire keeps the same 255-millimeter nominal width as the other STX size but uses a taller 70-series profile on the same 17-inch rim. On the 2006 Ford Trucks F-150 STX, this size is used on the 4x4 model, so it should be chosen only after confirming that exact drivetrain configuration. The radial construction suits the truck's modern pickup role while preserving the intended relationship between tire height and wheel diameter. This is the size to check when maintaining 4x4 fitment, especially if wheel changes, suspension changes, or previous tire substitutions may have altered the truck from stock-type sizing.
Sub-model fitment matters on the 2006 Ford Trucks F-150 STX because the 4x2 and 4x4 versions do not share the same primary tire size. Both use radial tires on 17-inch rims, but the correct selection starts with identifying the truck's drivetrain configuration.
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2006 Ford Trucks F-150 STX 4x2
The 2006 Ford Trucks F-150 STX 4x2 uses the 255/65R17 radial size. Tire selection for this sub-model centers on staying with that size while confirming wheel width, overall setup, and whether the truck still carries its intended 4x2 wheel and suspension configuration.
The 2006 Ford Trucks F-150 STX 4x4 uses the 255/70R17 radial size. That makes it important to confirm the truck is truly a 4x4 before choosing tires, especially if aftermarket wheels, lift changes, or previous replacements may have changed what is currently on the vehicle.
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 2006 Ford Trucks F-150 STX Tires for Sale
Current product choices for the 2006 Ford Trucks F-150 STX include a BFGoodrich All-Terrain T/A KO2 in 255/65R17, with radial construction, raised white letter sidewalls, and a rim-width range suited to many 17-inch truck wheels. That gives 4x2 owners a clearly defined all-terrain option to compare against their actual wheel setup and intended use.
For the 2006 Ford Trucks F-150 STX, the most important tire questions usually involve 4x2 versus 4x4 sizing, 17-inch rim fitment, available product styles, and the wheel, suspension, and condition checks worth making before regular road use.
Tire Size & Fitment
What tire size fits a 2006 Ford Trucks F-150 STX?
The 2006 Ford Trucks F-150 STX uses either 255/65R17 or 255/70R17, depending on the sub-model. The 4x2 version uses 255/65R17, while the 4x4 version uses 255/70R17. Both are radial tire sizes built for a 17-inch rim.
The important point is that STX fitment is not one-size-fits-all. Tire selection starts with confirming whether the truck is a 4x2 or 4x4, then checking that the wheels on the vehicle still match the intended setup. That matters even more if the truck has had wheel changes, suspension work, or a previous tire size substitution.
What size rim does a 2006 Ford Trucks F-150 STX use?
Both primary tire sizes used on the 2006 Ford Trucks F-150 STX are built around a 17-inch rim diameter. That applies to both the 255/65R17 size used on the 4x2 and the 255/70R17 size used on the 4x4.
Rim diameter is only one part of the fitment picture, so matching the tire to a 17-inch wheel does not end the decision. Wheel width, actual wheel type, and any aftermarket changes still deserve a close look before mounting new tires. On a used truck, it is smart to verify the wheel stamping or current wheel specs instead of assuming they are original.
Do all 2006 Ford Trucks F-150 STX sub-models use the same tire size?
No. The 2006 Ford Trucks F-150 STX 4x2 uses 255/65R17, while the 2006 Ford Trucks F-150 STX 4x4 uses 255/70R17. Both are radial tires on 17-inch rims, but the overall size is different between the two configurations.
That difference means the sub-model needs to be identified before choosing a replacement tire. A buyer should not rely only on the badge or what happens to be mounted on the truck now, especially if it has changed hands or been modified. Confirming the exact drivetrain setup helps keep sizing aligned with the truck's intended stance and clearance.
Choosing the Right Tire
What should I consider when choosing a 255/65R17 tire for a 2006 Ford Trucks F-150 STX?
For a 2006 Ford Trucks F-150 STX 4x2, the first priority is staying with the correct 255/65R17 size and confirming the tire is intended for a 17-inch wheel. Construction is straightforward here because the available fitment is radial, so the next considerations are tire type, sidewall appearance, rim-width compatibility, load capability, and how the truck is actually used.
A BFGoodrich All-Terrain T/A KO2 is available in this size, with raised white letter sidewalls and a 7.0 to 9.0 inch rim-width range. That makes it useful for owners who want a more truck-oriented look and all-terrain character, but the wheel on the vehicle should still be checked carefully before selection.
What sidewall styles are available for 2006 Ford Trucks F-150 STX tires?
Among the current product choices shown for the 2006 Ford Trucks F-150 STX, the available sidewall style is RWL, or raised white letter. That treatment appears on the 255/65R17 BFGoodrich All-Terrain T/A KO2 and gives the tire a more traditional truck-performance presentation than a plain black sidewall.
Sidewall style does not change the need to match the correct tire size to the correct STX sub-model. It is best used as a secondary decision after size, wheel compatibility, and intended use have been settled. For many owners, sidewall lettering is mainly an appearance choice, especially on a truck that is kept close to its period look.
What brands offer tires for the 2006 Ford Trucks F-150 STX?
BFGoodrich is represented among the available tire choices for the 2006 Ford Trucks F-150 STX. The current product selection shown here centers on the BFGoodrich All-Terrain T/A KO2 in 255/65R17, which is the size used on the STX 4x2.
Brand is only part of the buying decision on this truck. The correct size for the actual sub-model still comes first, followed by wheel match, intended driving surface, sidewall style, and load-related specifications. A good comparison starts with fitment, then looks at the character of the tire rather than choosing by brand name alone.
Restoration & Appearance
Which tire should I choose for a period-style 2006 Ford Trucks F-150 STX?
A period-style choice for a 2006 Ford Trucks F-150 STX starts with using the correct original-type size for the truck's sub-model: 255/65R17 for 4x2 or 255/70R17 for 4x4. Because this is a modern truck-era fitment, radial construction is already part of the proper visual and practical starting point.
Appearance then comes down to the kind of presentation you want the truck to have. A raised white letter all-terrain tire can lean into the STX's mid-2000s truck character, while the wrong size can alter the truck's stance even if the wheel diameter matches. For exact originality, compare any tire choice against vehicle-specific historical references and surviving examples.
How does tire construction affect the appearance of a restored 2006 Ford Trucks F-150 STX?
On a 2006 Ford Trucks F-150 STX, construction is less of a restoration divide than it would be on an older collector vehicle because the primary fitments are already radial. That means the more visible appearance differences usually come from tire height, tread character, and sidewall styling rather than from choosing between bias-ply and radial construction.
Keeping the correct sub-model size is what preserves the truck's intended look most effectively. A 4x2 on 255/65R17 and a 4x4 on 255/70R17 will not present exactly the same stance, even though both use 17-inch rims. Tire selection for a restored STX should support the truck's original overall proportions before focusing on cosmetic details.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2006 Ford Trucks F-150 STX?
Yes. Wheel changes, leveling kits, lift components, lowering, or previous tire substitutions can all affect tire fitment on a 2006 Ford Trucks F-150 STX. That matters because this model already uses different primary sizes between 4x2 and 4x4 versions, so an altered truck may not reflect its intended fitment at a glance.
A careful check should include wheel diameter, wheel width, current tire size, and clearance at steering lock and suspension movement. Even when the truck still has a 17-inch wheel, the wrong width or offset can change how a tire sits. Looking over the complete wheel-and-tire setup avoids choosing a size simply because it is already mounted.
What should I inspect before driving a 2006 Ford Trucks F-150 STX on new tires?
Before driving a 2006 Ford Trucks F-150 STX on new tires, inspect the wheels for damage, verify the tires match the truck's correct 4x2 or 4x4 size, and confirm proper inflation. It also makes sense to look over the suspension and steering components, since worn parts can affect how a new tire tracks and wears.
A second check should cover sidewall condition, mounting quality, valve stems, and any sign of rubbing at full steering lock. On a truck that sees mixed use, tread condition and air retention deserve regular follow-up after installation. A short local drive, followed by a recheck, can reveal issues before the truck is put into longer service.
How often should tires on a 2006 Ford Trucks F-150 STX be inspected?
Tires on a 2006 Ford Trucks F-150 STX should be inspected regularly, not just at replacement time. A routine visual check for air loss, uneven wear, cuts, bulges, and sidewall damage is smart on any truck, especially one that may alternate between commuting, light hauling, and occasional rougher surfaces.
Monthly pressure checks are a sensible baseline, and a closer inspection is worthwhile before road trips or seasonal use changes. Trucks with aftermarket wheels, suspension changes, or past alignment problems deserve even more attention because those factors can change wear patterns quickly. Consistent inspections help catch fitment or condition issues long before they become a road-use problem.
