Jeep Jk Axle Width. Rubicon models come straight out of the gate with a stronger front end than non-Rubicon models. You are most likely going to have to research the available backspace you can get to fit your axles and measure from there.

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My question to the masses is width. I'm going to get it wider than standard JK axle width as I intend to run larger tires soon. Chromoly Steel Means Lighter, Stronger & More Durable.

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To install a full width axle kit under the front of a Jeep CJ, you must move the front springs outboard the frame. This guide is designed to provide more information on how and when to modify the JK's front axle assembly. As the JK Wrangler increased in size, so did the axles regarding width.