Ram 2500 Tire Size Guide: OEM, Plus-One & Off-Road Options by Year

You're standing in the tire shop parking lot, staring at a 2022 Ram 2500 Tradesman on stock 265/70R17s, and the guy next to you just rolled in on 35s. His truck looks like it belongs on a trail. Yours looks like it just left the dealership, which is fine, until you remember you've been hauling gravel and towing a 12,000-pound trailer on tires spec'd for a base trim. Knowing your Ram 2500's factory tire size, and what you can safely step up to, saves real money and keeps your load ratings honest.

Most Ram 2500s leave the factory on 265/70R17, 265/60R20, or 275/65R18 tires depending on trim and year. A plus-one upgrade (285/70R17 or 285/65R20) adds about an inch of sidewall without touching the suspension. True off-road builds run 35s (315/70R17) and typically need a 2-inch leveling kit. Load Range E is the minimum for towing or payload work. Check your door jamb sticker for your exact factory spec.

Factory Tire Sizes by Year and Trim

The Ram 2500 has shipped on a handful of factory tire sizes over the last three generations. Your size depends on three things: the year, the trim, and the wheel package. A Tradesman work truck on 17s rolls on a very different tire than a Laramie on 20s.

Open the driver's door and look at the white-and-yellow sticker on the jamb. You'll see your exact factory size, cold inflation pressure, and gross axle weight ratings. That sticker is the only spec that matters for warranty and load-rating purposes. The marketing brochure can lie. The jamb sticker cannot.

Third Generation (2003-2009)

Third-gen 2500s ran 265/70R17 LT as the dominant size on most trims. Some Power Wagons jumped to 285/70R17. These are 32-inch tires by tape measure.

Fourth Generation (2010-2018)

The fourth gen broadened the spread. Tradesman and SLT 4x4 kept the 265/70R17 LT. Laramie packages with 20-inch wheels got 275/70R18 or 275/65R20. The 2014 Power Wagon arrived from the factory on 33-inch Goodyear Wrangler DuraTracs (LT285/70R17), the best stock off-road tire setup on any 2500 to date.

Fifth Generation (2019. Present)

The current platform, per the Ram spec page, usually ships in three flavors: 265/70R17 on Tradesman 4x4, 275/65R18 on Big Horn, and 265/60R20 on Laramie/Limited.

Generation	Trim Example	Factory Tire Size	Approx. Diameter
3rd gen (2003-2009)	SLT 4x4	265/70R17 LT	31.6"
3rd gen (2005-2009)	Power Wagon	285/70R17 LT	32.7"
4th gen (2010-2018)	Tradesman/SLT	265/70R17 LT	31.6"
4th gen (2014-2018)	Power Wagon	285/70R17 LT (DuraTrac)	32.7"
4th gen (2010-2018)	Laramie 20"	275/65R20	34.1"
5th gen (2019–present)	Tradesman 4x4	265/70R17 LT	31.6"
5th gen (2019–present)	Big Horn	275/65R18	32.1"
5th gen (2019–present)	Laramie/Limited	265/60R20	32.5"

Match your VIN year and trim to find your factory fitment.

Stock Ram 2500 Tradesman rolling on factory 265/70R17 LT tires, the most common factory fitment across the current generation.

How to Read a Ram 2500 Tire Size Code

A tire code like LT265/70R17 looks like a license plate, but every character means something. Here's the breakdown:

• LT = Light Truck construction (stiffer sidewall, higher load capacity). A P-metric tire on a 2500 is wrong for towing.
• 265 = section width in millimeters, sidewall to sidewall.
• 70 = aspect ratio (sidewall height is 70% of the width).
• R = radial construction.
• 17 = rim diameter in inches.

On the sidewall you'll also see a load range letter. C, D, and E are the ones you'll meet on a 3/4-ton truck. Load Range E is rated for roughly 80 psi cold and carries the payload numbers Ram advertises. If you swap a factory E for a passenger-rated tire, your real towing capacity drops, even if the truck is the same. Don't do it.

Speed ratings on HD trucks usually live in the R (106 mph) or S (112 mph) range and rarely move when you go up a size. If you're sizing other accessories at the same time, here's how to find the right steering wheel cover size so the cab matches the upgrade.

Plus-One Tire Upgrades That Fit Without a Lift

Plus-one sizing means you keep your factory rim diameter and jump one inch of overall height. On a 2500, that usually looks like 285/70R17 (32.7") on a 17-inch wheel, or 285/65R20 (34.6") on a 20-inch wheel. No fender trimming, no lift, no control arm work in most cases.

The catch is small. You'll see about 1-2 mph of speedometer error at highway speeds (your dash reads 70 when you're actually doing 71-72). A scan tool or a dealer reflash fixes it if it bugs you. Most owners just live with it.

Before you commit, do two checks. First, full steering lock both ways in your driveway. Look for rub at the upper control arm and the inside of the fender liner. Second, load the truck to its real working weight (trailer hooked up, bed loaded) and check the rear fender lip clearance. Stock 2500s have a touch of factory rake, so the rear sits higher than the front, but a sagging rear under load can change the math.

Load range stays equal or goes up. Never down. If your factory was LT265/70R17 E, your replacement is LT285/70R17 E or stronger. This is the rule that separates a truck that tows from a truck that just looks like it tows.

Off-Road Tire Sizes and Lift Requirements

The 2500 platform is friendly to bigger rubber, but the math gets real once you cross 33 inches.

Running 33s (305/70R17)

A 305/70R17 measures right at 33.8 inches. On a stock fifth-gen 2500, most owners report clean fitment with a 1.5-inch leveling kit and the factory wheel offset. Some run them on stock height with a slight inner-liner trim. The Power Wagon is your reference point here: it ships from the factory on 33-inch Wrangler DuraTracs (LT285/70R17, which measures ~32.7") with a factory locker and disconnect sway bar. If Ram engineered the platform around 33-inch tires for the Power Wagon, your Tradesman or Big Horn can run them too.

Running 35s (315/70R17)

A 315/70R17 is a true 34.4-inch tire, called a 35 in shop talk. This is where a 2-inch leveling kit becomes the minimum, and many owners go to 2.5 inches to clear rub at full steering lock. Wheel offset matters here. You want backspacing around 4.5 inches (offset around +18 to +25 mm on a stock-width wheel) to push the tire out enough to clear the upper control arm.

The Power Wagon ships from the factory on 33-inch DuraTracs, the best stock off-road baseline on the 2500 platform.

Test before you commit. Mount one tire, jack the truck up, cycle the steering full lock to full lock with the suspension at ride height. If it doesn't rub on the bench, it'll rub on the trail. Plan accordingly.

Tire Sizes That Level a Ram 2500

Every 2500 leaves the factory with rake. The front sits about an inch lower than the rear, by design, so the truck levels out when you load the bed or hook a trailer. Some owners love that look. Others want the truck level when it's empty.

You have two ways to level. A leveling kit (1.5 to 2.5 inches of front-end spacer or torsion bar adjustment) raises the front to match the rear. Or you go tire-only: bigger rubber adds height evenly, and a slightly taller tire up front closes the gap visually.

For tire-only leveling on stock suspension, 285/70R17 on 17-inch trucks or 285/65R20 on 20-inch trucks is the sweet spot. You gain about an inch of overall diameter, which translates to roughly a half-inch of ride height. It won't make the truck dead level, but it kills 60-70% of the factory rake. Pair that with a 1.5-inch leveling kit and you're done.

One thing to remember: a 2500 doesn't level the same as a 1500. The 2500 has heavier front-end weight (Cummins owners, you know), so the kit recommendations differ from what your buddy with a 1500 ran. Don't borrow specs across platforms.

Best Tire Picks for the Ram 2500 by Use Case

Tire choice follows use. A guy towing a 14,000-pound fifth wheel from Dallas to Denver needs a different tire than a guy who wheels his Power Wagon on weekends in Moab. Match the rubber to the work.

Daily Towing and Payload

Michelin Defender LTX M/S in LT265/70R17 Load Range E is the gold standard for highway and tow miles. Long tread life, quiet, predictable in rain. The BFGoodrich Commercial T/A A/S2 in the same size is the work-truck alternative. If you're regularly pulling above 10,000 pounds, Load Range E is not optional. The 80 psi sidewall holds shape under load. A D-rated tire will squirm and overheat under heavy tongue weight.

Mixed On-Road and Trail

Falken Wildpeak A/T3W in 285/70R17 is the most-recommended all-terrain on the Ram forums for a reason: it wears well, the sidewall is tough enough for fire roads, and it's not noisy on the highway. Toyo Open Country A/T III in the same size is the slightly more aggressive option with a longer warranty.

Full Off-Road Build

BFGoodrich Mud-Terrain T/A KM3 in LT315/70R17 if you live on rocks. Nitto Trail Grappler in the same size if you want a mud tire that doesn't scream on the highway. Both are E-rated, both eat tread life on pavement, both look great. Pick one and don't apologize.

Keeping Your Ram 2500 Interior Ready for the Miles Ahead

Here's what tire upgrades have in common with seat covers: both are about protecting the investment after you've already made it. You spent real money getting the right rubber under the truck. Now ask yourself what the inside of the cab looks like after a year of trail dust, gravel, work boots, and the dog.

Factory cloth in a 2500 holds onto mud the way a sponge holds water. The grit works into the weave, then into the foam, and by year three the driver's bolster is wearing thin where your thigh hits it climbing in. Eco-leather or fabric covers shaped to the seat keep that from happening. They wipe clean with a damp rag and pop off if you ever need to detail the foam underneath.

If you wheel or work your truck, look at OEM-style seat covers for the Dodge Ram 2500 or the made-to-fit 2001 dodge ram seat covers cut to the contour of your bench or buckets. SCS also stocks the broader Luxury Seat Covers for trucks and SUVs line if you want to compare materials. Install runs under an hour with a screwdriver and a friend. Most covers include airbag-compatible seams for safety.

Tailored, OEM-style seat covers keep a Ram 2500 cabin clean after the trail or the job site, installed in under an hour.

Frequently Asked Questions

Q: Is a 285 the same as a 33?

Close, but not exactly. A 285/70R17 measures 32.71 inches in diameter, which most folks round up and call a 33. A true 33x12.50R17 is 33 inches even and 12.5 inches wide, while the 285/70R17 is only about 11.2 inches wide. For most truck builds the performance is similar, but if your fender clearance is tight, that 1.3-inch width difference matters.

Q: What are the best tires for a Ram 2500?

It depends on what you do. For daily towing, the Michelin Defender LTX M/S in LT265/70R17 Load Range E is hard to beat. For all-terrain use that still sees highway miles, the Falken Wildpeak A/T3W in 285/70R17 is the most-recommended pick on Ram forums. For full off-road, the BFGoodrich KM3 in 315/70R17 handles rocks all day. Pick the tire that matches your primary use.

Q: Is a Ram 2500 considered a 3/4-ton truck?

Yes. The Ram 2500 is a 3/4-ton truck, built for heavier payload and towing than the half-ton Ram 1500. The Ram 3500 is the one-ton above it. That 3/4-ton rating drives the tire requirement: Load Range E tires are standard on most 2500 trims because the payload and towing math demands it. Don't downgrade load range to save money.

Q: What size tires will level a Ram 2500?

A 285/70R17 (on 17-inch wheels) or 285/65R20 (on 20-inch wheels) adds enough diameter to kill about 60-70% of the factory rake without touching the suspension. For a fully level stance, pair those tires with a 1.5-inch leveling kit. Some owners on stock suspension fit 35s, but rubbing at full steering lock is common without a 2-inch level.

Match the rubber to the work, then keep the cabin in shape with truck seat covers built to fit HD pickups. Same attention to fit that you just put into your tires.

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