Stock 33’s vs 35’s Pros and Cons

[coachump4]

I have a Rubicon 4.10 gear that currently has the stock Falken AT 33’s on it. It has no lift on the Jeep. I will need tires soon and looking at going to the 35’s specifically the Toyo Open Country AT3. What are the pros and cons to switching from 33’s to 35’s?

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[Mboy605]

I actually had the Toyo MT Open Country in a 35” tire on my Gladiator when it was stock. I have the Sport. So, I was running 3.73 gears and suspension that didn’t compare to the Rubicon. My take? The worked well. I can imagine you’d love running them on yours as well. The only reason I took them off was the need for a much bigger tire when I put on 5.5” of lift. The only con I had was running the 3.73 gears resulted in a harder time rolling those tires up objects. Your 4.10 gears should have far less issues there.

On a side note, I’m actually selling my Toyo set (5 count) on here.

 

[coachump4]

Why was it harder to roll up on objects?

 

[cafecito]

Why was it harder to roll up on objects?

You're scratching the surface of a very deep rabbit hole that I suggest you dive head-first into if you decide to start messing with tire sizes.

The tire size that your vehicle comes with from the factory is matched to the gear ratio of your differentials in each axle. Differential gearing is a balancing act that the engineers have to strike between creating enough torque to get the wheels moving, but not so much that your transmission shifts and MPGs go to hell. (Bigger tires rotate more slowly over the same amount of ground, so your engine has to raise the RPMs more to get them to the appropriate shift point.)

To answer your question: it takes more torque to turn a larger circle than it does a smaller circle. It's just basic physics. Think about when you open a door using the handle - you have a good amount of torque because you're pressing about 3 feet away from the hinges. Adding larger tires to a Jeep is the equivalent of moving your hand towards the middle of the door, which makes it noticeably harder to open.

In general, going up one size is "fine" in that you most likely won't notice any of the downsides, but the fact still remains that your differential gearing was intended for a different tire size. At a minimum, you'll need to recalibrate your ECU so that your speedometer reads correctly with the new tire size.

 

[Advntrbound]

I went from 33 wildpeak MT to 35" ATs. Gained one inch of clearance and drives quietly and smoothly. The only issue for me (and it really isn't an issue) is that I have a Manual transmission and it takes a little more gas sooner in the clutch throw to get it moving.

 

[PsyRN]

The only significant cons are probably cost and weight. Bigger tires cost more money, and weigh more. The Rubicon was designed to go up to 35s with little to no mods needed. Just don't get too wide of a tire for the OEM wheels or you might get some rubbing at full flex.

 

[Andy29847]

I have 35x11.5 Toyo AT3 tires on my Gladiator. I picked that tire because it fits inside the fender, it fits the stock wheels, and the Toyo weighs virtually the same as the stock Falken MT tires that came on my JTR. I love the tires. My Speedo is off a little, but it isn’t enough to make me buy a programmer.

 

[Stormtroopin]

I would go with some BFG AT 315 70 17, it’s a light weight 35 and you can find some for a reasonable price

 

[Barnaby’sdad]

The only way you wont notice the difference (even just going to 315/70-17) is if you’re just not a very observant person.

The negatives…as already stated…are cost and weight. As I alluded to above, it will be a bit more sluggish on acceleration, but it’s not a deal breaker, in my opinion. I kept my JTR take-offs and I’ve yet to think “I sure would like to go back to my stock wheels and tires.”

My two cents…the JT is a land yacht. Anything under 315/70-17 look puny. That’s really what the JTR should have come with stock, in my opinion.

I would go with some BFG AT 315 70 17, it’s a light weight 35 and you can find some for a reasonable price

That’s what I went with and I’m very happy with them, but I can’t say that I found any that are reasonably priced.

Some 315/70-17 pRon.

 

['22JTRD]

I have a Rubicon 4.10 gear that currently has the stock Falken AT 33’s on it. It has no lift on the Jeep. I will need tires soon and looking at going to the 35’s specifically the Toyo Open Country AT3. What are the pros and cons to switching from 33’s to 35’s?

https://tiresize.com/gear-ratio-calculator/

 

[Advntrbound]

These are actually 315/70r17 on factory wheels.

 

[wthayer69]

I have 33x12.50R17 Nitto Ridge Grapplers on Quadratec Recon wheels. I went through the same dilemma as you. I chose the 33s in a wider more aggressive tread pattern due to pulling a teardrop trailer. So happy I did. I didn't have to adjust anything. And it rides better than stock, especially pulling the trailer. Good luck with your decision.

 

[ZoMojave]

These are actually 315/70r17 on factory wheels.

Tires look nice. Fill in the wheel wells perfectly.

Hey, what are those side steps on your JT? I would like to get a set for my front doors.

 

[Advntrbound]

Tires look nice. Fill in the wheel wells perfectly.

Hey, what are those side steps on your JT? I would like to get a set for my front doors.

Thank you.
The step is modified to fit my jeep. My daughter is tiny and couldn't get in by herself without it. The box says "Carr Hoop II". I think these were designed to fit a full size Dodge pickup.

 

[ZoMojave]

Thank you.
The step is modified to fit my jeep. My daughter is tiny and couldn't get in by herself without it. The box says "Carr Hoop II". I think these were designed to fit a full size Dodge pickup.

Thanks!

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