The 2011 Ford Trucks F-350 Super Duty Lariat sits in the modern heavy-duty pickup era, where towing strength, work capability, and upscale trim features came together in one truck. Buyers looking at this exact model usually need to sort out tire fitment by wheel package and drivetrain first, because this Lariat uses four different radial sizes: 275/65R20, 275/65R18, 245/75R17, and 275/70R18. That makes the decision less about vintage-style construction and more about confirming the truck’s exact sub-model, wheel diameter, and intended use. Once that is settled, the focus shifts to proper load-carrying capacity, rim-width compatibility, sidewall style, and road-use readiness.
Which Tire Size Is Right for The 2011 Ford Trucks F-350 Super Duty Lariat
The 2011 Ford Trucks F-350 Super Duty Lariat uses four primary tire sizes, and the correct one depends on the truck’s exact sub-model and wheel diameter. Because these fitments span 17-inch, 18-inch, and 20-inch rims, the first step is confirming whether the truck is a 4x2, 4x4, dual rear wheel configuration, or 20-inch option before comparing tire choices.
275/65R20 is a metric radial size in which 275 is the nominal section width in millimeters, 65 is the aspect ratio, R identifies radial construction, and 20 is the rim diameter in inches. On this F-350 Super Duty Lariat, it is tied to the 20-inch wheel option and reflects a modern heavy-duty truck fitment rather than an older bias-ply sizing system. Available choices in this size include BFGoodrich’s All-Terrain T/A KO2 with an RBL sidewall treatment. This size is the right one to evaluate only after confirming that the truck is actually equipped with the 20-inch wheel setup.
275/65R18 uses the same basic metric radial format, with a 275-millimeter nominal width, a 65-series profile, radial construction, and an 18-inch rim diameter. For this vehicle, that size applies to the F-350 Super Duty Lariat 4x2 and keeps the buyer focused on 18-inch wheel compatibility first. BFGoodrich offers this size in the All-Terrain T/A KO2 series with a raised white letter sidewall, giving it a more assertive truck presentation than a plain sidewall treatment. It is the size to compare when the truck is a single-rear-wheel 4x2 on 18-inch rims.
245/75R17 is a metric radial size with a narrower nominal section width than the 275-series options, paired with a 75-series profile and a 17-inch rim. On the 2011 F-350 Super Duty Lariat, this size is used on the dual rear wheel versions, so its role is tied to that configuration rather than the standard single-rear-wheel setups. The available BFGoodrich All-Terrain T/A KO2 in this size carries a raised white letter sidewall and uses a different rim-width range than the wider sizes. This is the fitment to review when confirming a DRW truck and its 17-inch wheel package.
275/70R18 follows the same metric radial sizing convention, but the 70-series profile gives it a different dimensional relationship than 275/65R18 even though both use an 18-inch rim. For this F-350 Super Duty Lariat, that distinction matters because 275/70R18 belongs to the 4x4 configuration, not the 4x2 model that uses 275/65R18. BFGoodrich offers this size in the All-Terrain T/A KO2 series with raised white letter styling, which suits buyers looking for a more rugged appearance within the correct fitment. It should be chosen only after confirming both drivetrain configuration and actual wheel diameter.
2011 Ford Trucks F-350 Super Duty Lariat Sub-Model Tires
Tire fitment on the 2011 Ford Trucks F-350 Super Duty Lariat varies by sub-model, so checking the exact configuration matters before choosing a tire. Wheel diameter and whether the truck is 4x2, 4x4, dual rear wheel, or equipped with the 20-inch option determine which size belongs on the truck.
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2011 Ford Trucks F-350 Super Duty Lariat (20 Inch Option)
The 20 Inch Option uses a 275/65R20 radial tire, making wheel diameter the first thing to confirm before comparing products. Tire selection here centers on matching the 20-inch setup and then reviewing load capacity, rim-width compatibility, and sidewall presentation within that size.
The 4x2 version uses 275/65R18 radial tires, which distinguishes it from the 4x4 and DRW configurations. That means the buyer should confirm the truck is a single-rear-wheel 4x2 on 18-inch rims before moving on to product and specification comparisons.
2011 Ford Trucks F-350 Super Duty Lariat 4x2 (DRW)
The 4x2 DRW model uses 245/75R17 radials, not one of the wider 275-series sizes found on other Lariat configurations. Tire choice here depends on recognizing the dual rear wheel setup first, then checking the 17-inch wheel and the product’s rim-width and load details carefully.
The 4x4 model uses 275/70R18 radial tires, which separates it from the 4x2 model even though both use 18-inch rims. That makes it important to verify drivetrain configuration, then compare tires within the correct 18-inch size rather than assuming every 18-inch option is the same.
2011 Ford Trucks F-350 Super Duty Lariat 4x4 (DRW)
The 4x4 DRW version uses 245/75R17 radial tires, sharing its size with the 4x2 DRW truck rather than the single-rear-wheel 4x4. Buyers should confirm the dual rear wheel configuration first, since that determines the correct size before any other tire-selection decision is made.
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 2011 Ford Trucks F-350 Super Duty Lariat Tires for Sale
Available choices for the 2011 Ford Trucks F-350 Super Duty Lariat center on BFGoodrich All-Terrain T/A KO2 tires across the four correct radial sizes. The main comparison points are wheel diameter, rim-width specification, load capacity, weight, and whether the sidewall is RBL or RWL.
These FAQs focus on the tire-size differences within the 2011 Ford Trucks F-350 Super Duty Lariat lineup, along with rim fitment, product selection, appearance details, and the checks that matter before regular road use or heavier truck duty.
Tire Size & Fitment
What tire size fits a 2011 Ford Trucks F-350 Super Duty Lariat?
The 2011 Ford Trucks F-350 Super Duty Lariat does not use just one tire size across every configuration. Depending on the sub-model, it uses 275/65R20, 275/65R18, 245/75R17, or 275/70R18, and all of those are radial fitments tied to specific wheel and truck setups.
The practical step is to identify the truck’s exact configuration before choosing a tire. A 4x2, 4x4, DRW model, or 20-inch option can change the correct size, so the safest approach is to confirm the actual wheel diameter and sub-model rather than selecting by appearance alone.
What size rim does a 2011 Ford Trucks F-350 Super Duty Lariat use?
This truck can use 17-inch, 18-inch, or 20-inch rims depending on the exact version. The 245/75R17 size uses a 17-inch rim, 275/65R18 and 275/70R18 use 18-inch rims, and 275/65R20 belongs to the 20-inch option.
That range makes rim confirmation especially important before ordering or mounting tires. Two different 18-inch sizes apply to different configurations, and the DRW models move to a 17-inch fitment, so checking the wheel itself is more useful than assuming every Lariat truck shares the same setup.
Why does the 2011 Ford Trucks F-350 Super Duty Lariat have more than one tire size?
The size differences come from the truck’s sub-model variations, including 4x2, 4x4, dual rear wheel configurations, and the 20-inch wheel option. That is why this one model line uses four radial sizes instead of a single universal fitment.
For the buyer, this means tire selection starts with the truck’s exact configuration rather than the trim name alone. Even when two versions share an 18-inch rim diameter, they do not necessarily use the same tire size, so wheel diameter and sub-model should both be confirmed before making a choice.
Choosing the Right Tire
What should I consider when choosing a tire for a 2011 Ford Trucks F-350 Super Duty Lariat?
Start with the exact tire size that matches the truck’s configuration, because this Lariat can use four different radial sizes. After size is settled, compare rim-width compatibility, maximum load capacity, tire weight, and whether the truck is a single-rear-wheel or dual-rear-wheel setup.
The available products also vary in sidewall presentation, with RBL and RWL appearing across the fitments. That makes the right choice a balance of correct fitment, intended truck use, and appearance, rather than simply picking the largest or most aggressive-looking tire in the group.
What sidewall styles are available for 2011 Ford Trucks F-350 Super Duty Lariat tires?
The available sidewall styles for this truck include RBL and RWL, depending on the tire size. The 275/65R20 option appears with an RBL sidewall, while the 18-inch and 17-inch BFGoodrich KO2 offerings use an RWL sidewall treatment.
That detail matters mostly for appearance once the correct size has been confirmed. Sidewall style should never be the first filter, because the truck’s exact wheel diameter and sub-model determine the fitment, but it can help refine the look after the correct tire size and specification range are in place.
What brands offer tires for the 2011 Ford Trucks F-350 Super Duty Lariat?
The available products for these F-350 Super Duty Lariat fitments come from BFGoodrich. Across the supported sizes, the product line is the All-Terrain T/A KO2, so the brand choice is straightforward and the comparison shifts to the correct size and specification details.
That means the real decision is not between multiple brands, but between the correct fitment for the truck’s wheel and configuration. Buyers should focus on whether the truck needs 17-inch, 18-inch, or 20-inch tires, then compare the KO2 specifications that match that exact application.
Restoration & Appearance
Which tire should I choose for a period-style 2011 Ford Trucks F-350 Super Duty Lariat?
A period-appropriate choice starts with the exact size used by the truck’s sub-model, since this 2011 F-350 Super Duty Lariat spans four different radial fitments. Staying with the proper wheel diameter and modern radial sizing keeps the truck’s stance and overall presentation aligned with its original era.
Appearance then comes down to details such as sidewall treatment and the overall character of the tire series. A truck intended to reflect its early-2010s look should match size and wheel format first, then select the sidewall style that best suits the build without treating any one option as universally correct.
Does correct tire fitment matter for a 2011 Ford Trucks F-350 Super Duty Lariat restoration?
Yes, correct tire fitment matters because the 2011 Ford Trucks F-350 Super Duty Lariat was offered with multiple wheel and tire combinations. Using the proper size for the specific sub-model helps preserve the truck’s intended proportions and avoids mixing configurations that belong to different wheel packages or driveline setups.
That is especially important when a truck has changed hands or received later wheel swaps. A restoration-oriented approach should confirm the current wheel diameter, check whether the truck is SRW or DRW, and then choose a tire size that matches that configuration before focusing on appearance details.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2011 Ford Trucks F-350 Super Duty Lariat?
Yes, modifications can affect tire fitment on a 2011 Ford Trucks F-350 Super Duty Lariat. Aftermarket wheels, suspension changes, lift kits, leveling kits, or body alterations can change clearance, wheel width requirements, and the relationship between the tire and the truck’s steering and suspension components.
A modified truck should be checked carefully even when the tire size matches a recognized fitment. Wheel diameter, wheel width, offset, and available clearance at full steering lock all matter, so it is smart to verify the actual truck setup before assuming the original sub-model tire size still applies cleanly.
What should I inspect before driving a 2011 Ford Trucks F-350 Super Duty Lariat on new tires?
Before regular road use, inspect inflation pressure, wheel and lug condition, valve stems, and overall tire seating on the rim. It is also wise to confirm there is no rubbing at the fenders, suspension, or steering components, especially on a truck with a different wheel package or any previous modifications.
A heavy-duty pickup also benefits from checking load-related details before work use or towing. Make sure the installed tire size matches the truck’s configuration, review the tire’s load capacity and rim-width specification, and look for any uneven stance or clearance issue before putting the truck into service.
How often should tires on a 2011 Ford Trucks F-350 Super Duty Lariat be inspected?
Tires on a 2011 Ford Trucks F-350 Super Duty Lariat should be inspected regularly, not just at installation time. Routine checks should include air pressure, tread wear, cuts, bulges, cracking, and signs of irregular wear that could point to alignment, suspension, or loading issues.
Inspection becomes even more important on a truck that tows, carries heavy loads, or sits for long periods between uses. A quick visual check before longer trips and a more thorough review at regular service intervals helps catch fitment, wear, or aging problems before they become a road-use issue.
