The 2015 RAM Trucks 3500 Lone Star sits in the heavy-duty pickup world where payload, towing confidence, and long-wheelbase road manners matter as much as appearance. In this trim, tire fitment is tied closely to whether the truck is single rear wheel or dual rear wheel, and to whether it carries 17-, 18-, or 20-inch wheels. Primary sizes for the 2015 RAM Trucks 3500 Lone Star are all radial, including 275/70R18, 285/60R20, and 235/80R17. Available product choice centers on all-terrain radial construction with raised-letter or black-letter sidewall presentation depending on size. The key first step is confirming the exact sub-model and wheel setup before comparing tire style, load capability, and intended road use.
Which Tire Size Is Right for The 2015 RAM Trucks 3500 Lone Star
The 2015 RAM Trucks 3500 Lone Star uses three primary tire sizes, and the right one depends on the exact sub-model and wheel diameter. Single rear wheel 4x2 and 4x4 trucks use either 275/70R18 or 285/60R20, while dual rear wheel versions use 235/80R17. Before choosing a tire, confirm whether the truck is DRW or non-DRW and verify the actual wheel size currently on the vehicle.
275/70R18 is a modern metric radial size in which 275 identifies the nominal section width in millimeters, 70 is the aspect ratio, R denotes radial construction, and 18 is the wheel diameter in inches. On the 2015 RAM Trucks 3500 Lone Star, this size belongs to single rear wheel 4x2 and 4x4 configurations rather than DRW trucks. Available choice in this size includes the BFGoodrich All-Terrain T/A KO2 with a raised white letter sidewall presentation. It is a useful size to evaluate when the truck retains its 18-inch wheel setup and the goal is a heavy-duty all-terrain radial option.
285/60R20 is a metric radial size where 285 is the nominal section width in millimeters, 60 is the aspect ratio, R indicates radial construction, and 20 identifies the rim diameter in inches. This size applies to single rear wheel 2015 RAM Trucks 3500 Lone Star 4x2 and 4x4 trucks equipped with 20-inch wheels. Its shorter sidewall and larger wheel diameter make wheel confirmation especially important before purchase. Choose this fitment only after verifying that the truck is a non-DRW model and that it still uses the proper 20-inch wheel package.
235/80R17 is a metric radial size with a 235-millimeter nominal section width, an 80-series profile, radial construction, and a 17-inch rim diameter. On the 2015 RAM Trucks 3500 Lone Star, this size is used on dual rear wheel 4x2 and 4x4 models, so it serves a different role than the single rear wheel sizes. Available product choice includes the BFGoodrich All-Terrain T/A KO2 with a black-letter sidewall. It should be considered only after confirming the truck is a DRW configuration and that the wheel and load setup match this 17-inch fitment.
Sub-model fitment matters on the 2015 RAM Trucks 3500 Lone Star because tire size changes with both wheel package and single-versus-dual-rear-wheel configuration. Identifying the exact 4x2, 4x4, or DRW version is the first step before comparing tires.
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2015 RAM Trucks 3500 Lone Star 4x2
The 2015 RAM Trucks 3500 Lone Star 4x2 uses either 275/70R18 or 285/60R20, both in radial construction, depending on the wheel package. Tire selection starts with confirming whether the truck has 18-inch or 20-inch wheels, then comparing the available all-terrain options within that exact size.
The 2015 RAM Trucks 3500 Lone Star 4x2 (DRW) uses 235/80R17 radial tires. That makes wheel verification straightforward, but the buyer still needs to confirm the dual rear wheel setup and choose a tire suited to the truck's intended work and road use.
The 2015 RAM Trucks 3500 Lone Star 4x4 shares the same two primary radial sizes as the 4x2 single rear wheel truck: 275/70R18 and 285/60R20. The practical decision is confirming the installed wheel diameter first, then selecting the tire that matches the truck's use and preferred sidewall presentation.
The 2015 RAM Trucks 3500 Lone Star 4x4 (DRW) uses the 235/80R17 radial size. For this sub-model, the focus is less about choosing between multiple primary sizes and more about confirming the DRW wheel setup and matching the tire to load, clearance, and usage needs.
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 2015 RAM Trucks 3500 Lone Star Tires for Sale
Available 2015 RAM Trucks 3500 Lone Star tire choices center on BFGoodrich All-Terrain T/A KO2 radials. The current assortment varies by size, load specification, rim-width range, and sidewall presentation, including raised white letter for 275/70R18 and black-letter styling for 235/80R17.
Owners of a 2015 RAM Trucks 3500 Lone Star usually need to sort out exact tire size by sub-model, wheel diameter, and DRW versus non-DRW setup. These FAQs also cover product selection, sidewall style, fitment checks, and road-use inspection points.
Tire Size & Fitment
What tire size fits a 2015 RAM Trucks 3500 Lone Star?
The 2015 RAM Trucks 3500 Lone Star uses three primary tire sizes: 275/70R18, 285/60R20, and 235/80R17. The 275/70R18 and 285/60R20 sizes apply to single rear wheel 4x2 and 4x4 trucks, while 235/80R17 is used on dual rear wheel 4x2 and 4x4 versions.
The practical question is not just model year and trim, but whether the truck is DRW or non-DRW and which wheel diameter it actually has. A 17-inch DRW fitment should not be treated the same as an 18-inch or 20-inch single rear wheel setup, so check the truck itself before choosing tires.
What size rim does a 2015 RAM Trucks 3500 Lone Star use?
A 2015 RAM Trucks 3500 Lone Star can use 17-inch, 18-inch, or 20-inch rims depending on the sub-model and tire size. The 235/80R17 fitment uses a 17-inch rim, 275/70R18 uses an 18-inch rim, and 285/60R20 uses a 20-inch rim.
Rim diameter is the first thing to confirm because the truck does not use one universal wheel size across all configurations. Wheel changes over the years are common on heavy-duty pickups, so matching the tire to the actual rim diameter on the truck is more important than assuming the original setup is still in place.
Do all 2015 RAM Trucks 3500 Lone Star sub-models use the same tire size?
No. The 2015 RAM Trucks 3500 Lone Star uses different tire sizes across its sub-models. Single rear wheel 4x2 and 4x4 trucks use either 275/70R18 or 285/60R20, while dual rear wheel 4x2 and 4x4 trucks use 235/80R17.
That difference matters because tire selection follows the truck's exact configuration, not just the Lone Star nameplate. DRW fitment brings a different wheel and usage context than non-DRW fitment, and the choice between 18-inch and 20-inch non-DRW sizes depends on the wheel package already on the vehicle.
Choosing the Right Tire
What should I consider when choosing a tire for a 2015 RAM Trucks 3500 Lone Star?
Start with the exact primary size for the truck: 275/70R18, 285/60R20, or 235/80R17. From there, compare radial construction, wheel diameter, rim-width compatibility, and the tire's load specification so the selection matches the truck's actual configuration and intended duty.
Appearance and use also matter. A non-DRW truck on 18-inch wheels has a different tire decision than a DRW truck on 17-inch wheels, and sidewall treatment may matter if the truck's look is part of the goal. It helps to confirm whether the truck is used mainly for towing, general road use, or mixed on-road and off-road driving.
What sidewall styles are available for 2015 RAM Trucks 3500 Lone Star tires?
The current assortment includes more than one sidewall presentation. The 275/70R18 BFGoodrich All-Terrain T/A KO2 uses an RWL sidewall, while the 235/80R17 KO2 uses an RBL sidewall, giving buyers a choice between a more visual raised-letter look and a plainer black-letter appearance.
Sidewall style does not change the basic fitment, but it can change the truck's overall presentation. Raised white letters suit buyers who want a more pronounced all-terrain look, while black-letter styling keeps things more understated. The key is to choose the correct size first, then consider how the sidewall treatment fits the truck's use and visual preference.
What brands offer tires for the 2015 RAM Trucks 3500 Lone Star?
The available products for the 2015 RAM Trucks 3500 Lone Star are from BFGoodrich. The current fitments shown for 275/70R18 and 235/80R17 are both from the All-Terrain T/A KO2 line, giving the page a consistent all-terrain radial theme across the sizes that currently have product coverage.
Brand choice is only one part of the decision. The more important step is matching the tire to the truck's actual size, wheel diameter, and load needs, then comparing the sidewall style and rim-width range within that fitment. A heavy-duty pickup benefits more from correct configuration matching than from chasing a brand name alone.
Restoration & Appearance
Does correct tire fitment matter for the appearance of a 2015 RAM Trucks 3500 Lone Star?
Yes. On a 2015 RAM Trucks 3500 Lone Star, the right tire size affects stance, wheel-to-tire proportion, and whether the truck still presents the way its wheel package intended. A 17-inch DRW tire, an 18-inch single rear wheel tire, and a 20-inch single rear wheel tire all create visibly different results.
Appearance starts with correct fitment, not just tread style. Choosing the proper size for the truck's exact sub-model keeps the wheel diameter and tire profile in line with the setup already on the vehicle. After that, sidewall treatment such as raised white letters or black-letter styling can refine the visual character without changing the underlying fitment.
Which sidewall style suits a period-style 2015 RAM Trucks 3500 Lone Star?
That depends on the look you want from the truck. Raised white letter styling on the 275/70R18 BFGoodrich KO2 gives the 2015 RAM Trucks 3500 Lone Star a more pronounced all-terrain presentation, while black-letter styling on the 235/80R17 keeps the appearance more restrained and work-oriented.
A period-style choice for a 2015 truck is usually more about matching the truck's intended personality than chasing exact originality. Buyers who want the visual tone of a heavy-duty pickup with off-road influence may prefer raised white letters, while a cleaner black-letter look often suits utility-focused presentation. Size and wheel compatibility still come first.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2015 RAM Trucks 3500 Lone Star?
Yes. Wheel changes, suspension lifts, leveling kits, lowering, and aftermarket wheel widths can all affect tire fitment on a 2015 RAM Trucks 3500 Lone Star. Those changes can alter clearance at the fenders, steering components, and suspension, even when the tire size itself looks close to the original fitment.
The safest approach is to verify the actual wheel diameter and width on the truck before selecting tires, then check for clearance through full steering travel and suspension movement. DRW and non-DRW setups should be treated separately, and any modified truck deserves a closer look than one still using its original wheel and ride-height layout.
What should I inspect before driving a 2015 RAM Trucks 3500 Lone Star on new tires?
Inspect the wheel condition, confirm the lug hardware is correct, and make sure the tire size matches the truck's exact sub-model and wheel diameter. It also helps to verify inflation pressure, look for any interference points, and check that the truck's alignment and suspension condition will not create uneven wear.
A heavy-duty pickup places real demands on its tires, so road use should begin with a careful walk-around after installation. Recheck pressure after the first drives, watch for rubbing at full lock or under load, and pay attention to vibration or pull. Those early checks can catch wheel, clearance, or installation issues before they become bigger problems.
How often should tires on a 2015 RAM Trucks 3500 Lone Star be inspected?
Tires on a 2015 RAM Trucks 3500 Lone Star should be inspected regularly, not just at service intervals. Check for tread wear, cuts, punctures, cracking, bulges, uneven wear patterns, and air loss, especially if the truck tows, carries heavy loads, or spends long periods parked between uses.
Consistent inspection matters because heavy-duty tire service is hard on both tread and sidewalls. A quick check before longer trips and routine pressure monitoring between trips can reveal problems early. Trucks with dual rear wheels also deserve extra attention because inner and outer tire condition can differ, and a hidden issue can be missed without a deliberate inspection.
