2012 RAM Trucks 3500 ST Tires

The 2012 RAM Trucks 3500 ST uses two tire sizes, depending on configuration. Single-rear-wheel 4x2 and 4x4 models use 265/70R17, while dual-rear-wheel 4x2 (DRW) and 4x4 (DRW) models use 235/80R17. Both are radial fitments for 17-inch wheels.

The important step is matching the tire size to the truck's actual rear-wheel setup, not just the model name. A 3500 ST with four rear tires needs the DRW size, while an SRW truck uses the wider 265/70R17 fitment. Checking the wheel setup on the truck itself is especially important if wheels or tires have been changed previously.

The 2012 RAM Trucks 3500 ST uses 17-inch rims with both of its primary tire sizes. The 265/70R17 and 235/80R17 fitments are both built around a 17-inch wheel diameter, even though they serve different truck configurations.

Wheel diameter is only the first part of fitment, because rim width also matters when choosing among available tires. The 265/70R17 options suit a wider approved rim-width range than the 235/80R17 option. Confirming both wheel diameter and wheel width helps avoid choosing a tire that is correct in size code but mismatched to the actual wheel.

The 2012 RAM Trucks 3500 ST has more than one tire size because its sub-models are split between single-rear-wheel and dual-rear-wheel configurations. SRW trucks use 265/70R17, while DRW trucks use 235/80R17, even though both fitments stay on 17-inch radial tires.

That difference means the correct tire cannot be chosen by year, make, and model alone. The truck's actual configuration determines the proper size, and that affects more than appearance. Wheel-width compatibility, service load, and the spacing requirements of a dual-rear-wheel setup all make it important to stay with the right fitment for the exact sub-model.

Start with the correct size for the truck's configuration: 265/70R17 for single-rear-wheel models or 235/80R17 for dual-rear-wheel models. From there, compare the tire's load specification, approved rim-width range, construction, and sidewall presentation so the tire matches both the truck and the way it is used.

A heavy-duty pickup places more importance on carrying capacity and wheel compatibility than appearance alone. It also helps to check whether the truck still has its original wheel setup or has been altered with aftermarket wheels. That keeps the selection process focused on the right tire for the truck's actual stance, service demands, and wheel dimensions.

Sidewall style varies by size on the 2012 RAM Trucks 3500 ST. The available 265/70R17 BFGoodrich All-Terrain T/A KO2 options use raised white letter styling, while the available 235/80R17 KO2 uses a black sidewall treatment.

That means appearance choice is partly tied to fitment rather than being fully interchangeable across the range. An SRW truck using 265/70R17 naturally leans toward the raised white letter look, while a DRW truck using 235/80R17 has a more understated black sidewall presentation. The correct size should stay the priority, with sidewall appearance treated as a secondary preference.

BFGoodrich is represented in the available fitments for the 2012 RAM Trucks 3500 ST. The choices shown here are within the All-Terrain T/A KO2 series, covering both the 265/70R17 size used on SRW models and the 235/80R17 size used on DRW models.

Since the available options stay within one brand and series, the buying decision becomes more about matching the correct size and specification than comparing different brand personalities. Looking closely at size-specific details such as load capacity, sidewall style, and approved rim-width range will be more useful than searching for a brand-to-brand comparison within this particular fitment set.

Yes, modifications can affect tire fitment on a 2012 RAM Trucks 3500 ST even when the tire size itself looks correct. Changes such as aftermarket wheels, altered offsets, suspension lifts, lowering, or body modifications can influence clearance, wheel compatibility, and how the tire sits under load or during steering movement.

A truck that has been changed from its original wheel setup should be checked carefully before replacement tires are chosen. On DRW models, rear spacing is especially important, while SRW trucks still need proper clearance at the front suspension and fenders. Verifying wheel width and overall setup on the vehicle helps prevent ordering a tire that matches the size code but not the truck's current configuration.

Before road use, inspect tire pressure, lug torque, valve stems, tread seating, and visible sidewall condition. It is also smart to confirm that the new tires match the truck's correct SRW or DRW size and that there is no rubbing at the front suspension, fenders, or between the rear duals where applicable.

A heavy-duty truck deserves a short recheck after the first miles, especially if it will be used for hauling or towing. Looking for uneven contact, air loss, or clearance issues early can catch setup problems before they become larger ones. That quick inspection matters even more on trucks that have seen wheel changes or long periods of storage.

Tires on a 2012 RAM Trucks 3500 ST should be inspected regularly, not just when tread looks low. Monthly pressure checks are a good habit, and visual inspections for cuts, cracking, bulges, uneven wear, and punctures should happen before longer trips, towing duty, or heavy-load use.

A truck in occasional service can develop tire issues simply from age, storage, or underinflation, even when mileage stays modest. DRW models also benefit from routine checks between the rear duals, where damage or trapped debris may be less obvious. Consistent inspection helps protect both tire life and the truck's stability when it is asked to do heavy-duty work.