Biggest Tire You Can Fit on a Stock Ram 2500

The Dodge Ram 2500 is a well-known heavy-duty pickup truck famous for its powerful petrol and diesel engines, spacious interior, high hauling, and decent offroading capabilities. All these features make Dodge Ram 2500 a reliable and versatile option for everyday challenges.

Owners love customizing their Ram 2500 trucks. The most popular and desirable change is switching to larger tires.

So what is the biggest tire you can fit on a stock Ram 2500?

If we take the largest factory tire sizes, they vary from 31.7 to 33.5 inches.

A 33.5-inch tire is the biggest size for a stock Ram 2500, but it is used on off-road and high-trimmed Dodge trucks.

Ram 2500, produced in 2006-2018, also can accommodate a 33-inch tire on a stock suspension.

The larger 34-inch tire, without any rubbing or trimming for now, runs only on the 2018 Ram 2500.

A 35-inch tire is the maximum size that can be mounted on a stock Dodge truck. While the 2001-2003 Ram 2500 does not require any side works, models manufactured in 2004-2018 may have minor rubbing or need trimming works for tire accommodation.

Our experts have checked thousands of custom projects of Dodge Ram 1500 trucks from various forums and collected information on the tire and rim sizes. Additionally, our team compiled a handy table with the biggest tire sizes for every year of the truck. 

We only provide tire sizes that do not cause any rubbing, require no fender trimming, and don’t need any changes to the factory suspension.

What size tire can I fit on a stock Ram 2500?

Dodge Ram 2500 can have various tire sizes. Such moments as the year of the truck, trim level of the cabin, and rim size together may influence the size of a tire that fits on your truck.

According to Ram manuals, tire sizes for these trucks vary between 31.7-33.5 inches. 

A 31.7×10.8 inch tire size (LT265/70R17) usually applies to primary and mid-level trimmed Ram 2500.

A 33.2×10.8 inch tire size (LT275/70R18) is mounted on the Ram 2500 with a higher trim level.

A 33.5×11.4 inch tire (LT285/60R20) is the biggest factory size used on off-road and high-trimmed Ram 2500.

Speaking about a 33-inch tire, it can fit 2006-2018 stock Ram 2500 trucks. It means that you won’t face any rubbing or need to perform additional trimming of body or plastic parts to accommodate a 33-inch tire size. Here are several 33-inch tire variations which fit stock 2006-2008 Ram 2500 trucks with no further upgrades.

On a stock Dodge Ram 2500 produced in 2006, one can install a 33×12.5 tire. Such size fits 17×8.5 and 18×9 rims. In practice, such configurations have shown no rubbing or scrubbing, so there was no need to cut the truck’s body for tire fitment.

A 33-inch tire also fits stock 2007-2018 Ram 2500 trucks. Consider every 33-inch tire configuration for these generations in more detail. All the mentioned sizes include the stock suspension of the Ram 2500 truck, meaning that they don’t need body trimming and cause no rubbing issues. 

• For a stock 2007 Ram 2500 – 33×10.8 tire on a 20×10 rim or 33×12.5 on a 20×9 (and 20×10) wheel.
  
• For a stock 2010 Ram 2500 – 33.2×10.8 tire on an 18×9 rim.

• For a stock 2012 Ram 2500 – 33.5×12.5 on 20×10 wheel.

• And for a stock 2018 Ram 2500 – 33×12.5 tire on a 20×10 wheel.

If you want to mount bigger tires on your stock Ram 2500 truck, you`ll be pleased to hear it is possible.

A 34-inch tire size with no rubbing and minor body cuts can be installed only on a 2018 Ram 2500. Here are the tire parameters for this 2018 Dodge runs: 34×11.6 tire on 18×9 wheel.

Even bigger 35-inch tires can also be installed on a stock Ram 2500. The most common is a 35×12.5 tire size.

However, a 35×12.5 tire size, for now, works only for 2001-2003 stock Ram 2500 trucks, while owners of models produced from 2004 to 2018 may face slight rubbing or require minor to significant trimming.

What size tires come on stock Ram 2500 20–inch wheels?

Tire sizes that come on stock Ram 2500 with 20-inch rims can be different due to the truck’s model, year, and trim. For example, a 33-inch tire (LT285/60R20E) is applied to the 2019-2023 Ram 2500 Big Horn/Lone Star, Laramie, Limited, Limited Longhorn, and Power Wagon. A 2020-2023 Ram 2500 Tradesman with 20-inch wheels usually has a 34-inch tire size (LT275/65R20E).

What are the biggest tires that can go on a stock Ram 2500 with 18-inch rims?

The largest tire size that can be mounted on an 18-inch rim depends on the truck’s specific model, year, and trim level. The biggest tire size that can go on a stock Ram 2500 with the 18-inch wheel is a 35-inch tire size.

The tallest tires you can put on stock Ram 2500 with 17-inch rims

The tallest tire that can be installed on a Ram 2500 truck with no fenders or suspension components scrubbing and additional trimming works is a 33-inch tire. Bigger sizes, 34-35 inches, are also possible to fit. However, they may require side modifications for proper fitment.

What Are the Biggest Tire Alternatives for My Ram 2500?

The table below illustrates the largest tire configurations for various rim diameters that Dodge Ram 2500 owners installed on their modified pickup trucks.

All tire and rim sizes in this table enable you to put on the largest tire with the stock suspension, depending on the year the truck model was made.

What size tires are best for a stock Ram 2500?

Larger-than-stock tires usually involve further truck changes to suspension with the help of leveling/lift kits or work with the body-like trimming to make new tires fit properly in wheel wells.

The Ram 2500 may still have larger tires installed while maintaining its stock aesthetic.

The Dodge Ram 2500 tire sizes can vary from 245/70R17 to 285/60R20, taking into account the trim level and year of your truck production.

We’ve compiled data on each generation of stock Dodge Ram 2500 trucks and the tire sizes they allow to help you with proper tire fitment for your vehicle.

The following table will serve as a guide to assist you in choosing the right tire size for your Ram 2500 truck.

Can you fit 33-inch tires on a stock Ram 2500?

Yes, you can. Stock Dodge Ram 2500 manufactured in 2006-2018 can easily accommodate a 33-inch (and slightly bigger) tire size. Moreover, a 33-inch tire fits 17-20 inch rims with no issues.

Will 35-inch tires fit on a stock Ram 2500?

Most stock Ram 2500 trucks won`t fit a 35-inch tire. However, only vehicles produced in 2001-2003 can accommodate a 35-inch tire on a stock suspension with no rubbing or trimming issues. Here is how these parameters look in more detail: 35×12.5 tire on 18×9 rim.