2009 Ford Trucks F-350 Super Duty FX4 Tires

The 2009 Ford Trucks F-350 Super Duty FX4 uses two tire sizes, and the correct one depends on the truck's configuration. Single-rear-wheel Crew Cab, Reg. Cab, and Super Cab models use 275/70R18 radial tires, while Crew Cab (DRW), Reg. Cab (DRW), and Super Cab (DRW) models use 245/75R17 radial tires.

That means the first step is identifying whether the truck is a dual-rear-wheel model and confirming the wheel diameter already on the vehicle. A tire should be matched to the actual cab and wheel setup rather than chosen by model name alone, especially if the truck has had wheel or suspension changes during its service life.

The 2009 Ford Trucks F-350 Super Duty FX4 uses either a 17-inch or 18-inch rim, depending on the tire size and configuration. Trucks fitted with 275/70R18 use an 18-inch rim, while DRW trucks fitted with 245/75R17 use a 17-inch rim.

Rim diameter is the non-negotiable starting point because a 17-inch tire cannot be mounted on an 18-inch wheel, and the reverse is also true. It is also worth checking actual wheel width before choosing a tire, since the available products for these sizes have different rim-width compatibility ranges tied to each size.

The 2009 Ford Trucks F-350 Super Duty FX4 has more than one tire size because single-rear-wheel and dual-rear-wheel versions use different wheel and tire combinations. The 275/70R18 size applies to the single-rear-wheel Crew Cab, Reg. Cab, and Super Cab models, while 245/75R17 is used on the DRW versions.

That distinction matters because a DRW truck has a different rear-wheel arrangement and should be matched to the size intended for that setup. Before replacing tires, confirm the truck's current wheel diameter and rear-wheel configuration, especially if it has been modified or if replacement wheels were installed by a previous owner.

Start with the correct size for the truck's exact configuration: 275/70R18 for single-rear-wheel FX4 models and 245/75R17 for DRW models. From there, compare radial construction, rim-width compatibility, load capacity, and overall tire character so the tire matches how the truck is actually used.

A heavy-duty pickup may see towing, hauling, highway miles, or dirt-road use, so the best choice is the one that fits the wheel correctly and supports the intended job. It also helps to confirm whether the truck still has its original wheel diameter, since changing wheels can alter which tire size is appropriate.

The available tires for the 2009 Ford Trucks F-350 Super Duty FX4 use RWL sidewalls, which means raised white letters. That styling appears on the BFGoodrich All-Terrain T/A KO2 options offered in both 275/70R18 and 245/75R17.

Sidewall style is partly an appearance decision, but it can also affect how the truck presents itself if you are trying to keep an FX4's rugged, period-appropriate look. The more important point is still selecting the correct size and wheel match first, then deciding whether the raised white letter presentation suits the truck's intended look.

BFGoodrich offers tires for the 2009 Ford Trucks F-350 Super Duty FX4 in the primary sizes covered here. Both 275/70R18 and 245/75R17 are available in the All-Terrain T/A KO2 series with radial construction and raised white letter sidewalls.

Since the available brand choice is focused rather than broad, the decision becomes more about choosing the correct size and checking the product specifications within that size. Load capacity, weight, rim-width compatibility, and the truck's real-world use are more important than trying to compare brands that are not present in these fitments.

A period-style choice starts with using the correct tire size for the truck's actual configuration. On the 2009 Ford Trucks F-350 Super Duty FX4, that means 275/70R18 for single-rear-wheel models and 245/75R17 for DRW models, both in radial construction rather than an older bias-ply format.

Because this is a modern heavy-duty truck, keeping the correct size, wheel diameter, and overall visual stance matters more than chasing a vintage-style construction change. An all-terrain radial with the right proportions and sidewall presentation will usually do more to preserve the truck's era-appropriate look than experimenting with an off-size substitute.

On a 2009 Ford Trucks F-350 Super Duty FX4, radial construction is part of the truck's proper visual and functional character. The primary sizes for this model are both radials, so staying with the correct radial format helps preserve the truck's intended stance and modern heavy-duty pickup presentation.

Appearance is influenced not just by construction, but also by sidewall style, tread character, and overall tire proportions on the wheel. A raised white letter all-terrain tire can support the FX4 look well, but the best visual result still depends on using the proper size for the truck's exact single-rear-wheel or DRW configuration.

Yes, modifications can change tire fitment on a 2009 Ford Trucks F-350 Super Duty FX4 even when the tire size seems close. Aftermarket wheels, suspension lifts, leveling kits, lowering changes, or body alterations can affect wheel diameter, wheel width, offset, and the space available around the tire.

A truck that no longer has its original wheel setup should be checked carefully before replacing tires by size alone. Steering clearance, rear dual-wheel spacing on DRW models, and fender or suspension clearance all matter, so the current wheel and suspension configuration should be verified before settling on either of the original tire sizes.

Before driving a 2009 Ford Trucks F-350 Super Duty FX4 on new tires, inspect inflation pressure, lug torque, valve stems, and overall tire seating on the wheel. It is also smart to look for any signs of rubbing at full steering lock and to confirm that the installed tires match the truck's actual wheel diameter and configuration.

A heavy-duty truck places meaningful demands on its tires, so a quick road-use check should also include tread condition, sidewall condition, and any unusual vibration during the first miles. On DRW trucks, pay extra attention to rear spacing and clearance, while single-rear-wheel models should be checked for front-end clearance under turning and suspension movement.

Tires on a 2009 Ford Trucks F-350 Super Duty FX4 should be maintained with regular pressure checks, visual inspections, and attention to tread wear patterns. Watch for cuts, bulges, cracking, irregular wear, or slow air loss, and keep the tires matched to the correct size for the truck's single-rear-wheel or DRW setup.

Maintenance matters even more on trucks that spend time towing, hauling, or sitting for long periods between uses. Uneven wear can point to alignment, suspension, or inflation issues, so it helps to inspect the tires before longer trips and anytime the truck's ride, steering feel, or loaded behavior begins to change.