flextraordinary - coil Spring And Bumpstop Extension Installed - Photo 32818700

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Here you can see the driver-side coil spring and bumpstop extension being installed. All of the coil springs in this kit have an approximately 25 percent heavier rate. This was done to counter the added weight of larger tires and wheels and accessories.

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Here you can see the contents of the 4-inch long-arm X-Series kit.

The install begins at the front of the vehicle. After removing a number of components including the shocks, sway bar links, track bar, coil springs, and control arms, the lower control arm pockets are removed with a cut off wheel. These are removed to make room for the new control arms.

Here you can see the driver-side framerail after the lower control arm pocket has been removed.

The new crossmember mounts to the vehicle securely using factory and new mounting points. The crossmember not only supports the transmission but also serves as the rear mounting point for the new front control arms.

Each side of the new crossmember is held in place by six fasteners. Here you can see one of the four new mounting points being drilled.

Because the threads of some of the mounting bolts are located in the frame, flag nuts are used. Here you can see one of the flag nuts being installed on the passenger-side of the vehicle. The instructions are very clear as to which flag nuts are used in each position.

Here you can see the passenger-side of the new crossmember with all of the mounting bolts installed but not tightened.

The control arms go in next. The lowers are 2 inches in diameter and the uppers are 1¾ inches in diameter. X-Flex joints are used at the crossmember mounting positions and where the upper arms mount to the lower arms. Clevite rubber bushings are used elsewhere.

A longer track bar bracket bolts in place of the factory track bar bracket using factory hardware.

Longer, newly-designed sway bar links are included with the kit and they utilize new mounts at the sway bar as well as disconnect pins on the axle brackets.

Holes need to be drilled in the center of each axle bumpstop pad for the 3-inch bumpstop extensions.

Here you can see the driver-side coil spring and bumpstop extension being installed. All of the coil springs in this kit have an approximately 25 percent heavier rate. This was done to counter the added weight of larger tires and wheels and accessories.

In this view of the finished frontend, most of the components are visible. You can also see the new 1¼-inch-diameter track bar, Performance 2.2 Series shocks, and optional steering stabilizer.

At the rear of the ZJ a number of items are removed prior to installing the new parts. These include the track bar, shocks, sway bar assembly, coil springs, and control arms. Similar to the front, the lower factory control arm mounts at the frame (passenger-side shown) are removed using a cut off wheel to make room for the new components.

A smaller aftermarket muffler is required with this kit (not included), so a cutting blade is used to remove the factory unit.

Both of the upper factory control arm mounts need to be removed. To facilitate access and removal of the passenger-side upper control arm mount, the five rear nuts of the studs holding the exhaust heat shield are removed so it can be lowered.

Here you can see the passenger-side upper control arm mount being removed.

There's a new control arm bracket for each side of the vehicle and each bracket is mounted to the frame and requires drilling, crush sleeves, and utilization of flag nuts to install.

The rear control arms are the same arms used in Rough Country's long-arm kit for the Jeep LJ. Like the front, the lower arms are 2 inched in diameter and the upper arms are 1 3/4 inched in diameter and utilize X-flex joints and Clevite bushings. This is how the drivers-side control arm bracket looked with the control arms installed before the fasteners were tightened.

A new track bar bracket is included to compensate for the suspension lift and it mounts in the stock frame mount. The factory track bar is reused.

Here you can see the completed rearend. Note the new coil springs, Performance 2.2 series Shocks, and bumpstop drop brackets. Not visible are the items used to relocate the brake lines.