Helpful tips

Do I need XJ frame stiffeners?

Do I need XJ frame stiffeners?

You don’t “need” them, but you should certainly do them. Even on a stock jeep they do make a noticeable difference. They don’t “have” to go on before rock sliders, but you will have to take the sliders off again to install them. If its all welded, that becomes a real pain.

Can iron rock frame stiffeners be used with rock sliders?

Our frame stiffeners are also designed to tie into the floor. Not only can these be used to strengthen the unibody where it is most vulnerable they can also be used as a slider or rock armor.

What is a frame stiffener?

If you’re building a Jeep XJ, you should start by welding on some frame stiffeners. The stiffeners will provide a strong foundation that you can use to mount all the good stuff: suspension mounts, skidplates, drivetrain mounts, and sliders.

Do Jeep XJ have a frame?

The x-ray view of the XJ unibody. While it has an integrated “chassis” that carries the running gear, the body structure is an integral part of the assembly.

What is the difference between body-on-frame and unibody?

The difference between unibody and body-on-frame vehicles is fairly straight forward. Unibody vehicles have the chassis and body of the car together. A body on frame vehicle has a frame which the vehicle stresses pass through, and the body of the car rests on top of this.

Is body-on-frame better than unibody?

Unibody vehicles have the advantage of being lighter than their body-on-frame counterparts. This translates to better fuel economy ratings. Their lower center of gravity and more rigid frame also make them much less prone to vehicle rollover. Unibody designs also score higher on crash safety test ratings.

Are Wranglers body-on-frame?

They’re Unibody. If you’ve got a JK Wrangler, or a CJ / TJ, even a YJ, you’re in luck. Those use a Ladder Frame. So a body lift kit is readily available for you.

What do front stiffeners do for a Jeep XJ?

Their front stiffeners will firm up your frontend and improve your steering box mount. The Jeep Cherokee XJ has been around since 1984 and is popular for being an ultra-cheap 4×4 that you can load with gear and still be comfortable. But it has a unibody. Unibodies are pretty common now, but the Jeep Cherokee XJ was one of the first 4x4s to use it.

Where are the stiffeners on an XJ unibody?

Looking for a way the strengthen your XJ unibody, then this is the solution you have been looking for! This is our complete uniframe stiffeners which extend from the front to the rear bumper. The entire kit is laser cut and CNC formed for precision fitment.

What’s the weakness of the Jeep XJ frame?

The unibody is the XJ’s weakness and without making it stronger, you’ll flex the body, snap welds, get cracks, and end up mounting important stuff to thin unibody rails. The long slot welds distribute force and stress and keep your Cherokee’s unibody frame tight to the stiffener.

Which is the best frame stiffener on the market?

These are the best frame stiffeners ever they went on really easy and fit tight to the factory unibody. The fit is perfect. The function is stellar. I wouldn’t build another xj without doing this first. Strong foundation with minimal added weight. And they look Sah-wee-tah! Night and day difference!