The 2010 Lincoln Trucks Navigator sits in the era when full-size luxury SUVs balanced traditional body-on-frame capability with a more refined highway presence. Buyers looking at this exact Navigator usually care less about whether it can carry the right look and more about matching the tire to the wheel package already on the vehicle. For this model year, the primary fitment centers on two radial sizes, 255/70R18 and 275/55R20. That makes the main decision one of wheel diameter first, then tire style and intended road use. For a stock truck, confirming whether it has 18-inch or 20-inch wheels is the key first step before comparing replacement choices.
Which Tire Size Is Right for The 2010 Lincoln Trucks Navigator
The 2010 Lincoln Trucks Navigator uses two primary tire sizes, and both are radial fitments tied to different wheel diameters. The first thing to confirm is whether the vehicle is wearing 18-inch or 20-inch wheels, because that determines whether 255/70R18 or 275/55R20 applies. Once wheel diameter is settled, the decision becomes choosing a tire that matches the vehicle's existing setup, use, and overall fitment needs.
255/70R18 is a metric radial size in which 255 identifies the nominal section width in millimeters, 70 is the aspect ratio, R indicates radial construction, and 18 is the wheel diameter in inches. On the 2010 Lincoln Trucks Navigator, this size belongs to the 18-inch wheel setup rather than the 20-inch package. Its overall dimensions give it a taller sidewall profile than the 20-inch alternative. This is the right size to evaluate only after confirming that the Navigator is equipped with 18-inch rims and has not been changed to a different wheel package.
275/55R20 is a metric radial size where 275 is the nominal section width in millimeters, 55 is the aspect ratio, R marks radial construction, and 20 designates the wheel diameter in inches. On the 2010 Lincoln Trucks Navigator, this size is used with the 20-inch wheel setup. Compared with the 18-inch fitment, it pairs a wider section width with a shorter sidewall profile. This size should be chosen only after verifying that the vehicle actually has 20-inch wheels and that no previous owner has altered the wheel or suspension configuration.
Tire fitment is straightforward across the covered 2010 Lincoln Trucks Navigator sub-models because both the Base and Navigator L use the same two primary sizes. The key is not trim level alone, but confirming which wheel diameter is on the vehicle before selecting a replacement tire.
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2010 Lincoln Trucks Navigator Base
The 2010 Lincoln Trucks Navigator Base can use either 255/70R18 or 275/55R20, both in radial construction. That means tire selection starts with checking whether the Base model has 18-inch or 20-inch wheels, then choosing a replacement that matches that setup.
The 2010 Lincoln Trucks Navigator L also uses 255/70R18 or 275/55R20 radial tires, so the fitment pattern mirrors the standard-length model. The longer-wheelbase designation does not change the basic size choice here, but wheel diameter still has to be confirmed before moving forward.
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.
Frequently Asked Questions
Common questions for the 2010 Lincoln Trucks Navigator usually center on choosing between the two primary tire sizes, confirming wheel diameter, and understanding how trim level, modifications, and routine inspection affect fitment.
Tire Size & Fitment
What tire size fits a 2010 Lincoln Trucks Navigator?
The 2010 Lincoln Trucks Navigator uses two primary tire sizes: 255/70R18 and 275/55R20. Both are radial sizes, and each one corresponds to a different wheel diameter rather than a different construction type.
The practical step is to confirm which wheels are actually on the SUV before choosing a tire. A Navigator Base or Navigator L may have either fitment, so the correct size depends on whether the vehicle is equipped with 18-inch or 20-inch rims and whether any wheel changes have been made over time.
What size rim does a 2010 Lincoln Trucks Navigator use?
A 2010 Lincoln Trucks Navigator uses either an 18-inch rim or a 20-inch rim, depending on which tire size is on the vehicle. The 255/70R18 fitment uses an 18-inch wheel, while the 275/55R20 fitment uses a 20-inch wheel.
That rim diameter is the first measurement to verify before ordering replacement tires. Looking only at the model name is not enough, because both the Base and Navigator L can use either setup. Checking the wheel itself or the sidewall of the current tire helps prevent choosing the wrong diameter.
Do all 2010 Lincoln Trucks Navigator sub-models use the same tire size?
The covered 2010 Lincoln Trucks Navigator sub-models share the same fitment pattern, but not a single tire size. Both the Navigator Base and Navigator L can use 255/70R18 or 275/55R20, so the available sizes are the same across both sub-models.
That means the sub-model name alone does not settle the tire decision. The better approach is to treat wheel diameter as the deciding factor, then verify that the vehicle still has its intended wheel package. This is especially important on used luxury SUVs, where wheel upgrades are common.
Choosing the Right Tire
What should I consider when choosing a tire for a 2010 Lincoln Trucks Navigator?
Start with the correct primary size for the wheel package already on the vehicle: 255/70R18 for an 18-inch wheel or 275/55R20 for a 20-inch wheel. Since both are radial fitments, the choice is not about changing construction as much as matching the proper diameter, section width, and profile.
After size is confirmed, compare the vehicle's actual use. A Navigator that sees mostly highway driving may call for different priorities than one used for frequent passenger hauling or long trips. Wheel condition, suspension wear, and any previous modifications should also be checked before settling on a replacement tire.
How do I choose between 255/70R18 and 275/55R20 tires for a 2010 Lincoln Trucks Navigator?
The choice between 255/70R18 and 275/55R20 is determined by the wheel diameter already on the 2010 Lincoln Trucks Navigator. These are not alternate sizes for the same rim, so the tire must match either the 18-inch or 20-inch wheel currently installed.
A quick sidewall check on the existing tire usually answers the question immediately. If the SUV has aftermarket wheels, confirm both diameter and overall clearance before moving ahead. Using the wrong size for the wheel can create mounting problems, while an altered suspension can change how a correct-size tire fits in use.
Why does the 2010 Lincoln Trucks Navigator have more than one tire size?
The 2010 Lincoln Trucks Navigator has more than one tire size because it was fitted with more than one wheel package. The two primary sizes, 255/70R18 and 275/55R20, are both radial tires, but each belongs to a different rim diameter.
That distinction matters because a tire is chosen by wheel setup, not just by year and model name. Both the standard Navigator and the Navigator L can use either fitment pattern, so the safest path is to inspect the truck itself. Wheel swaps, replacement rims, and appearance changes are common on large SUVs.
Restoration & Appearance
Does correct tire fitment matter for a 2010 Lincoln Trucks Navigator restoration?
Yes, correct tire fitment matters on a 2010 Lincoln Trucks Navigator because the overall appearance and stance depend heavily on whether the vehicle is wearing the proper 18-inch or 20-inch tire-and-wheel combination. Using the wrong size can change proportion, sidewall profile, and the way the SUV sits visually.
For a restoration-minded project, start by confirming which wheel package belongs on the specific vehicle being brought back to stock form. Service history, original window sticker material, marque references, and period photographs can all help. That approach keeps the tire decision tied to the truck's actual configuration rather than guesswork.
How does tire size affect the appearance of a restored 2010 Lincoln Trucks Navigator?
Tire size has a visible effect on a restored 2010 Lincoln Trucks Navigator because 255/70R18 and 275/55R20 create different sidewall proportions and visual balance. Both sizes are appropriate primary fitments, but they support different wheel diameters and give the SUV a different stance.
Appearance-focused buyers should confirm the intended wheel package before choosing a replacement tire. A stock-style restoration usually looks most cohesive when tire size and wheel diameter match the truck's original setup. If the vehicle has been modified, comparing wheel fitment and body clearance first helps avoid a look that feels mismatched.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2010 Lincoln Trucks Navigator?
Yes, modifications can affect tire fitment on a 2010 Lincoln Trucks Navigator even when the tire size itself is one of the correct primary fitments. Aftermarket wheels, different offsets, suspension changes, or lowered ride height can all change how 255/70R18 or 275/55R20 sits in the wheel opening.
A truck that has been altered should be checked for steering clearance, suspension travel, and fender space before replacement tires are chosen. Wheel diameter alone does not tell the whole story. Verifying the complete setup helps prevent rubbing issues and makes it easier to stay close to the intended fitment.
What should I inspect before driving a 2010 Lincoln Trucks Navigator on new tires?
Before driving a 2010 Lincoln Trucks Navigator on new tires, inspect the wheels, valve stems, and basic suspension condition, and make sure the tire size matches the installed rim diameter. It is also wise to look over the alignment condition if the previous tires showed uneven wear.
Road-ready preparation should include checking inflation pressure, confirming there is no interference at full steering lock, and watching for vibration during the first miles. A large SUV places real demands on tires, so signs of worn shocks, loose steering components, or damaged wheels should be addressed before regular driving resumes.
How often should tires on a 2010 Lincoln Trucks Navigator be inspected?
Tires on a 2010 Lincoln Trucks Navigator should be inspected regularly, not just when tread looks low. A full-size luxury SUV benefits from routine checks for pressure loss, uneven wear, cuts, bulges, and sidewall aging, especially if it sees long gaps between drives.
Monthly visual checks are a sensible habit, with a closer inspection before road trips or seasonal use changes. The correct size still needs the right condition to perform properly. Paying attention to wear patterns can also reveal alignment or suspension issues before they become expensive problems or affect ride quality.
