The right tires for Ram 3500 dually trucks are 235/80R17, the factory size in all model years in our data, with matching pairs at the rear. None of the three listings below is that size: one is a single-rear-wheel size, one is a 35-inch lift-kit tire and one is a 16-inch tire.
Disclosure: some links are Amazon affiliate links; we may earn a commission at no extra cost to you. We have not road-tested these tires. Specs come from the Amazon listings and tire-size data from tiresize.com.
| Lexani Terrain Beast AT LT265/70R17 121/118S E |  | Not a dually size | Tire size: LT265/70R17 121/118S | Fit: Not for dually (235/80R17) | Type: All-terrain LT, load range E | VIEW LATEST PRICE | Read Our Analysis |
| Hercules TIS RT1 35×12.50R20 F/12PLY |  | Oversize, 20-inch, not a dually size | Tire size: 35×12.50R20 | Fit: Large lift-kit size, 20-inch wheels | Type: Rugged-terrain, load range F | VIEW LATEST PRICE | Read Our Analysis |
| Michelin LTX A/T2 (listing text: LT245/75R16 120) |  | Not a dually size | Tire size: LT245/75R16 per listing | Fit: Not a Ram 3500 size | Type: All-terrain highway LT | VIEW LATEST PRICE | Read Our Analysis |
More Details on Our Top Picks
Lexani Terrain Beast AT LT265/70R17 121/118S E
LT265/70R17 does not fit a Ram 3500 dually, which uses 235/80R17 on all years in our size data. It is a single-rear-wheel size for 2011-2012 trucks only.- Tire Size:LT265/70R17
- Load Index:121/118
- Rim Size:17 inches
- Fit:Not for dually (235/80R17)
Pros
- Fits older SRW trucks
Limitations
- Not a dually size
Hercules TIS RT1 35×12.50R20 F/12PLY
A 35-inch tire for 20-inch wheels with load range F. It is far from the dually 235/80R17 size and is for lifted single-rear-wheel builds. The listing calls it dually-ready; check wheel size and clearance before relying on that.- Tire Size:35×12.50R20
- Load Index:Per listing
- Rim Size:20 inches
- Fit:Large lift-kit size, 20-inch wheels
Pros
- Load range F
- Reinforced sidewalls per listing
Limitations
- Not the dually 235/80R17 size
- Needs lift and big-tire clearance
Michelin LTX A/T2 (listing text: LT245/75R16 120)
The listing text describes LT245/75R16 with a 120 load index, a 16-inch size that no Ram 3500 in our data uses. The heading gives no size. It does not fit a dually.- Tire Size:LT245/75R16
- Load Index:120 per listing
- Rim Size:16 inches
- Fit:Not a Ram 3500 size
Pros
- Name-brand highway tire
Limitations
- Not a Ram 3500 size
- Size not in the heading
Tires for Ram 3500 dually: 235/80R17 and what to check
Dually tire basics
- Factory size: 235/80R17 on dual-rear-wheel Ram 3500 trucks (2011-2026), per tiresize.com.
- Six tires: match the rear pairs in size and wear so the duals share the load.
- Load range: heavy-duty LT tires, usually load range E or higher.
Confirm on your own sticker.
Fit checklist
- Read the size on the door-jamb sticker. See how to read the door-jamb tire sticker.
- Keep the same rim diameter, and match or beat the stock load index and load range.
- Buy four matching tires on four-wheel drive.
- Keep dual pairs within a tiny tread-depth and diameter difference to avoid overloading one tire.
FAQ
What tire size does a Ram 3500 dually use?
235/80R17 on all model years in our size data. Check your door-jamb sticker.
Can I use single-rear-wheel tires on a dually?
No. The size and load rating must match the dually wheels.
Why match dual pairs?
Mismatched diameters make one tire carry more load and can wear it out faster.
What load range do duallies need?
Typically load range E or higher. Match the range on your sticker.
How often should I rotate dually tires?
Follow your owner’s manual and rotate to keep wear even.
When should I replace dually tires?
When tread reaches 2/32 inch, or sooner if tires are cracked or older than about six years.
Which one to choose
None of these three listings fit a dually. Search Amazon for a 235/80R17 LT tire with the right load range instead, and see the Ram 3500 diesel 4×4 page for single-rear-wheel sizes.
