Non-Rubi axle vs Rubi axle and -18 vs +1 offset wheels?

[TexasTruck]

Hello,

I'm new here, not new to the Jeep world, just been away a while....

I bought a 2023 Jeep Willys JT. I was looking at a Rubicon or Mojave, but I couldn't pass up the 12K below MSRP (which was unheard of 6 months ago). Plus it allows me (financially) to sorta build it up myself, Jeeps are fun that way.

I learned that the Rubicon/Mojave models have wider axles, about 1.5" wider or 3/4" on each end and that's about 19mm.

I'm looking at wheels, 20x9's. I'm staring at pictures, but it's difficult to tell what the offsets are, some mention it, a lot don't. I've look at several wheel makers and for our 5x127 lug pattern, most show either +1 or -18 offset, some -12 or +/-44, but you get the picture; I just want a little poke is all.

Any way, if my JT has shorter axles, should I be looking at wheels that have a -18 offset instead of a wheel that has a +1 offset?

TIA
Scott

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[JT1]

Hello,

I'm new here, not new to the Jeep world, just been away a while....

I bought a 2023 Jeep Willys JT. I was looking at a Rubicon or Mojave, but I couldn't pass up the 12K below MSRP (which was unheard of 6 months ago). Plus it allows me (financially) to sorta build it up myself, Jeeps are fun that way.

I learned that the Rubicon/Mojave models have wider axles, about 1.5" wider or 3/4" on each end and that's about 19mm.

I'm looking at wheels, 20x9's. I'm staring at pictures, but it's difficult to tell what the offsets are, some mention it, a lot don't. I've look at several wheel makers and for our 5x127 lug pattern, most show either +1 or -18 offset, some -12 or +/-44, but you get the picture; I just want a little poke is all.

Any way, if my JT has shorter axles, should I be looking at wheels that have a -18 offset instead of a wheel that has a +1 offset?

TIA
Scott

What size tires do you want to run? 32's? 35s?

You will need to decrease the backspace (offset less positive) if you want to run wider tires, to keep them off your swaybar links. A zero offset 9" wheel should be close to a 5" backspace and will give you about 2 1/2" more poke than stock

 

[Discount Tire]

The -18 will get you the poke that you are looking for. Seems to be the more popular if the 2 set ups.
Hope that helps!

 

[TexasTruck]

What size tires do you want to run? 32's? 35s?

I'm leaning towards a Nitto RG 34"/35" 11"/12" , I'm not sure. I will probably level it. I'm not opposed to a 2" kit, but it is a highway truck.

I don't want it to look funny because the tires are to short and wide or to tall and skinny.

 

[TexasTruck]

The -18 will get you the poke that you are looking for. Seems to be the more popular if the 2 set ups.
Hope that helps!

It does @Discount Tire You guys are always helpful, thank you!

A lot of pictures with wheels and tires are of Rubicons. They'll say +1 offset and the rear shot shows just the right about of poke IMO. But those models have wider axles. So a +1 is like a -18 on axles that are 3/4" or 19mm shorter. (-18mm + 19mm = +1mm).

Here's an example of a Mojave with a 20x9 +1 offset.

 

[Discount Tire]

It does @Discount Tire You guys are always helpful, thank you!

A lot of pictures with wheels and tires are of Rubicons. They'll say +1 offset and the rear shot shows just the right about of poke IMO. But those models have wider axles. So a +1 is like a -18 on axles that are 3/4" or 19mm shorter. (-18mm + 19mm = +1mm).

Here's an example of a Mojave with a 20x9 +1 offset.

Glad that helps! Sometimes it's hard to articulate what that poke is going to look like!

I think the -18 will put you right where you want to be.

 

[Northshoremb]

Glad I came upon this thread cause I have a 2023 Rubicon and was going for new rims and tires. Was looking at all these -12 offset thinking what I need but seems like 0 or +1 is what I should be looking for to get nice stance but not way out

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