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Wheels & Tires for the Ram 1500 TRX

Wheels, rims, tires, and lug hardware sized for the TRX — factory-style replacements through aggressive off-road fitments.

2 parts

Wheel and tire fitment on the TRX comes down to four hard specs, and a wheel that misses any one of them does not go on the truck: 6x139.7mm bolt pattern, 77.8mm hub bore, M14x1.5 lug studs, and an offset the truck actually likes. From the factory it wears 18x9 wheels with 325/65R18 — a 35-inch Goodyear Wrangler Territory AT.

The two decisions that follow are size and load rating. Going taller than 35s usually means a leveling kit, changes your speedometer reading and effective gearing, and demands attention to load range on a truck this heavy. Offset and backspacing — which are not the same measurement — decide whether the tire clears and how much extra stress lands on the bearings. All of it is in the wheel & tire fitment guide.

TRX wheel & tire hard specs

Bolt pattern
6x139.7mm (also written 6x5.5")
Hub bore
77.8mm — the wheel should be hub-centric to this, or use hub-centric rings
Lug studs
M14x1.5 thread — match lug nuts and any spacers to this, with the correct seat type
Factory wheel
18x9
Factory tire
325/65R18 (35-inch) Goodyear Wrangler Territory AT
Going taller
37-inch tires generally require a leveling kit and often trimming — plus a speedometer recalibration

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Used, OEM, and hard-to-find wheels & tires for the TRX — live listings, prices set by the seller.

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Parts in Wheels & Tires

Before you buy wheels & tires for a TRX

  • Check all four hard specs — bolt pattern, hub bore, lug thread, offset — before buying any wheel. Three out of four is a wheel you cannot use.
  • Offset and backspacing are different measurements. Know which one the listing quotes.
  • Match load rating to the truck. A ≈6,300 lb pickup on 35s needs a properly load-rated tire, not a light-truck-in-name-only one.
  • Budget for an alignment after any wheel, tire or ride-height change.
  • Running two wheel sets? You need a second set of TPMS sensors.

Read before you spend

TRX Wheel & Tire Fitment Guide The four hard specs, offset vs. backspacing, and sizes stock vs. leveled vs. lifted. TRX Tire Guide: A/T vs. M/T, Load Range & Winter Ratings Decoding the 325/65R18 sidewall, load index, speed rating, and the M+S vs. 3PMSF symbols. TRX Lift Kit Buyer's Guide What you need underneath the truck before taller rubber makes sense. Best TRX Brake Upgrades Bigger tires increase stopping distance — the brake half of the equation. Common TRX Problems & the Parts That Fix Them Including tire and alignment wear patterns on 35s.

Wheels & Tires FAQ — Ram 1500 TRX

What is the bolt pattern on a Ram TRX?
The TRX uses a 6x139.7mm bolt pattern (also written 6x5.5"), with a 77.8mm center bore and M14x1.5 lug studs — the same wheel mounting specs as the rest of the fifth-generation (DT) Ram 1500. Any wheel must match all three, plus a TRX-appropriate offset.
What size tires come on a Ram TRX from the factory?
325/65R18 — a 35-inch Goodyear Wrangler Territory AT — mounted on 18x9 wheels. That is the baseline every fitment decision should be measured against, and it clears at stock ride height with no modification.
Will 37-inch tires fit a TRX?
Often, but not as a plug-and-play swap. Most owners running 37s have a leveling kit, an appropriate wheel offset and sometimes some trimming. Beyond clearance, taller tires change your speedometer reading and effective gearing, so plan on a recalibration and expect the truck to feel slower off the line.