The 2012 RAM Trucks 3500 SLT sits in the heavy-duty pickup world where towing, hauling, and everyday work use all place real demands on tire selection. In this generation, the 3500 balanced modern diesel-era capability with the kind of chassis and cab choices that could change how the truck was equipped from the factory. For this exact model, tire fitment centers on two 17-inch radial sizes, 235/80R17 and 265/70R17, depending on the sub-model. Available choices stay focused on all-terrain radial construction, with differences in load capacity, sidewall presentation, and rim-width range. The key is matching the tire to the truck's exact configuration before comparing use case and appearance.
Which Tire Size Is Right for The 2012 RAM Trucks 3500 SLT
The 2012 RAM Trucks 3500 SLT uses two primary tire sizes, and the correct one depends on the exact sub-model rather than a broad model-wide fitment. Both are radial tires for 17-inch rims, so the first step is confirming whether the truck is a DRW configuration or a Crew Cab or Mega Cab setup before choosing between the available all-terrain options.
235/80R17 is a metric radial size where 235 identifies the section width in millimeters, 80 is the aspect ratio, R denotes radial construction, and 17 is the wheel diameter in inches. On the 2012 RAM Trucks 3500 SLT, this size is used on certain DRW sub-models and keeps the fitment within the truck's 17-inch wheel setup. Available choices in this size include a BFGoodrich All-Terrain T/A KO2 with an RBL sidewall. This size is the one to evaluate when the truck's exact configuration calls for the narrower 235-width fitment rather than the 265 series tire.
Fit(s): 4x2 Crew Cab, 4x2 Mega Cab, 4x4 Crew Cab, and 4x4 Mega Cab
Construction: Radial|Rim: 17 in
265/70R17 is a metric radial size that uses a 265-millimeter section width, a 70-series aspect ratio, radial construction, and a 17-inch rim diameter. On the 2012 RAM Trucks 3500 SLT, this size applies to Crew Cab and Mega Cab configurations rather than the DRW models. Available tires in this size include BFGoodrich All-Terrain T/A KO2 options with raised white letter sidewalls and different load-capacity specifications. This is the size to compare when the truck uses the wider single-rear-wheel fitment and tire choice depends more on load rating and intended use.
Tire fitment varies by sub-model on the 2012 RAM Trucks 3500 SLT, even though all covered configurations use 17-inch radial tires. Checking the exact cab and drive setup matters first, because DRW models use a different primary size than the Crew Cab and Mega Cab versions.
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2012 RAM Trucks 3500 SLT 4x2 (DRW)
The 2012 RAM Trucks 3500 SLT 4x2 (DRW) uses the 235/80R17 radial tire size. Tire selection here starts with staying in that size, then comparing all-terrain product details such as sidewall style, load specification, and wheel-width compatibility.
The 2012 RAM Trucks 3500 SLT 4x2 Crew Cab uses the 265/70R17 radial tire size. That makes the decision less about size changes and more about choosing the right load-capacity version and confirming the truck still has the expected 17-inch wheel setup.
The 2012 RAM Trucks 3500 SLT 4x2 Mega Cab uses 265/70R17 radial tires. Buyers in this sub-model should focus on selecting within that size by comparing the available load ratings and making sure the wheel width and truck use match the tire chosen.
The 2012 RAM Trucks 3500 SLT 4x4 (DRW) uses the 235/80R17 radial size. For this configuration, staying with the DRW-specific size is the priority before looking at all-terrain tread character, sidewall appearance, and other product differences.
The 2012 RAM Trucks 3500 SLT 4x4 Crew Cab uses 265/70R17 radial tires. Selection usually comes down to matching the correct load-capacity version to the truck's use while confirming the wheel setup has not been changed from the original 17-inch fitment.
The 2012 RAM Trucks 3500 SLT 4x4 Mega Cab also uses the 265/70R17 radial size. That keeps the focus on product choice within the proper fitment, especially if the truck sees towing, hauling, or has had aftermarket wheel changes.
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 2012 RAM Trucks 3500 SLT Tires for Sale
Available tires for the 2012 RAM Trucks 3500 SLT center on BFGoodrich All-Terrain T/A KO2 radials in both primary sizes. The main comparison points are size-specific fitment, RBL versus RWL sidewall presentation, load-capacity specification, and rim-width range.
Owners of a 2012 RAM Trucks 3500 SLT usually need clarity on which of the two 17-inch tire sizes applies, how fitment changes by sub-model, and how to compare load rating, sidewall style, wheel setup, and road-use readiness.
Tire Size & Fitment
What tire size fits a 2012 RAM Trucks 3500 SLT?
The 2012 RAM Trucks 3500 SLT uses either 235/80R17 or 265/70R17, depending on the exact sub-model. DRW versions use 235/80R17, while Crew Cab and Mega Cab versions use 265/70R17. Both are radial tire sizes built for 17-inch wheels.
The important step is identifying the truck's exact configuration before choosing a tire. A 3500 SLT badge alone is not enough, because cab style and dual-rear-wheel setup affect the correct fitment. It also helps to confirm that the truck still has its intended wheel setup if it has seen aftermarket changes.
What size rim does a 2012 RAM Trucks 3500 SLT use?
The covered tire fitments for the 2012 RAM Trucks 3500 SLT use a 17-inch rim diameter. Both 235/80R17 and 265/70R17 are built around that same 17-inch wheel size, even though the section width and profile differ between the two tire sizes.
Rim diameter is only the first checkpoint. The actual wheel width still matters when selecting a replacement tire, especially because the available products in these two sizes use different rim-width ranges. Checking the wheel markings or measuring the wheel can help avoid choosing a tire that matches the diameter but not the wheel width.
Why does the 2012 RAM Trucks 3500 SLT have more than one tire size?
The 2012 RAM Trucks 3500 SLT has more than one tire size because fitment changes by sub-model. The DRW configurations use 235/80R17, while the Crew Cab and Mega Cab versions use 265/70R17. Both sizes are radial and both use a 17-inch rim diameter.
That means the right tire depends on how the truck was configured, not just the year and trim. Before replacing tires, confirm whether the truck is a dual-rear-wheel model or a single-rear-wheel cab configuration. That verification matters more here than broad assumptions about all 3500 SLT trucks using the same tire.
Choosing the Right Tire
What should I consider when choosing a tire for a 2012 RAM Trucks 3500 SLT?
Start with the correct primary size for the truck's exact configuration: 235/80R17 for DRW versions or 265/70R17 for Crew Cab and Mega Cab models. From there, compare radial construction details such as load capacity, sidewall style, and the wheel-width range the tire is designed to work with.
A 3500 is a heavy-duty truck, so the best comparison is not cosmetic alone. Match the tire to how the truck is actually used, especially if it tows or carries substantial loads. It is also smart to confirm the truck still has the expected wheel dimensions before choosing between the available size-specific options.
What sidewall styles are available for 2012 RAM Trucks 3500 SLT tires?
Sidewall style varies by size on the 2012 RAM Trucks 3500 SLT. The available 235/80R17 option uses an RBL sidewall, while the available 265/70R17 options use RWL sidewalls. That creates a visible difference even within the same BFGoodrich All-Terrain T/A KO2 family.
Appearance may matter, but the sidewall treatment should still be considered after the correct size and load specification are established. A truck that needs the DRW fitment should stay focused on the 235/80R17 category first, while Crew Cab and Mega Cab owners can compare the raised white letter presentation within the proper 265/70R17 fitment.
What tire series are available for the 2012 RAM Trucks 3500 SLT?
The available product line for the 2012 RAM Trucks 3500 SLT is centered on the BFGoodrich All-Terrain T/A KO2 series. That series appears in both primary sizes used by this truck, giving the page a consistent all-terrain radial theme across the different sub-model configurations.
Because the series stays the same, the real comparison shifts to size, load-capacity specification, sidewall presentation, and wheel-width compatibility. That is especially useful for buyers who want a consistent tread family but still need to match the tire to a DRW truck or to a Crew Cab or Mega Cab version.
Restoration & Appearance
Does correct tire fitment matter for a 2012 RAM Trucks 3500 SLT restoration?
Yes, correct tire fitment still matters on a 2012 RAM Trucks 3500 SLT restoration or preservation project, even though this is a modern heavy-duty pickup rather than an earlier collector vehicle. Using the proper size for the exact sub-model helps preserve the truck's intended stance, wheel relationship, and overall presentation.
A restoration-minded owner should confirm whether the truck is a DRW model or a Crew Cab or Mega Cab version before replacing tires. Visual details such as RBL or RWL sidewalls can also affect how original or period-appropriate the truck looks, but size and load specification should be settled before appearance becomes the deciding factor.
How does tire construction affect the appearance of a restored 2012 RAM Trucks 3500 SLT?
For the 2012 RAM Trucks 3500 SLT, the primary fitments are radial tires, so construction changes are less about vintage bias-ply versus radial appearance and more about keeping the truck within its correct modern heavy-duty look. Sidewall treatment becomes the bigger visual difference here than construction type.
That means an owner focused on presentation should pay attention to whether the truck uses the RBL 235/80R17 fitment or the RWL 265/70R17 fitment associated with other sub-models. Keeping the proper size and sidewall style in line with the truck's configuration usually does more for an authentic appearance than chasing visual changes alone.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2012 RAM Trucks 3500 SLT?
Yes, modifications can affect tire fitment on a 2012 RAM Trucks 3500 SLT even when the original tire size is known. Aftermarket wheels, suspension changes, leveling kits, or altered ride height can change clearance and wheel-width requirements for either 235/80R17 or 265/70R17 fitments.
A truck that has been changed from stock should have its actual wheel diameter and width confirmed before tire selection. It also helps to check steering clearance, rear dual spacing where applicable, and any signs of rubbing under load. Those checks matter more than assuming the truck still matches its original sub-model configuration.
What should I inspect before driving a 2012 RAM Trucks 3500 SLT on new tires?
Before driving a 2012 RAM Trucks 3500 SLT on new tires, inspect the wheels for correct size and condition, verify inflation pressure, and confirm that the tires match the truck's exact sub-model fitment. Lug torque, valve condition, and visible clearance around suspension and body components are also worth checking.
A short initial road check is useful after installation, especially on a heavy-duty truck that may tow or haul. Watch for vibration, rubbing, or uneven stance, and recheck air pressure after the first miles. That extra attention helps catch setup issues early rather than finding them once the truck is loaded or on the highway.
How often should tires on a 2012 RAM Trucks 3500 SLT be inspected?
Tires on a 2012 RAM Trucks 3500 SLT should be inspected regularly, with quick checks before normal use and a closer inspection before towing, hauling, or longer trips. Look for uneven wear, cuts, bulges, cracking, and gradual air loss, since heavy-duty use can reveal problems faster than light-duty driving.
Inspection is especially important if the truck spends time parked between uses or carries changing loads. Tire pressure, tread condition, and any signs of sidewall damage should be reviewed often enough that small issues do not become road-use problems. Staying consistent with checks is just as important as choosing the correct size in the first place.
