As you can see below, the Rough Country long-arm kit for the XJ did exactly what one would expect, and it dramatically improved suspension flex. On a 20-degree ramp we saw a 79-point improvement in the XJ's RTI score from stock to modified, and a 326-point improvement in modified form with the sway bar disconnected. That's a 16.7- and 68.8-percent improvement, respectively.
The height afforded by the suspension and larger tires translated to a 23-percent improvement in approach angle and a 31.3-percent improvement in departure angle. These are very welcome numbers when a rock ledge is in your path.
On the road, the XJ felt stable and controlled, with no weird bumpsteer after the install, albeit with a slightly stiffer ride as one would expect. On the rocks, the XJ crawled confidently, and there were no unhappy sounds audible as the suspension articulated.
The install itself was what we expected. Rough Country says this kit takes a professional mechanic about six to eight hours to install. This time should hold true for the 61/2-inch kit as well.
When it's all said and done, the Rough Country kit delivers, and it does so at an attractive price point.
Stock (28.3x8.90-15 Goodyear Wrangler RT/S tires)
RTI (in traveled): 48
RTI score: 474
Front/rear bumper to ground (in): 14/18
*Approach/departure angle (deg): 44/32
Modified (31x10.50-15 Dick Cepek F-C II tires)
RTI (in traveled): 56 (sway bar connected), 81 (sway bar disconnected)
RTI score: 553 (sway bar connected), 800 (sway bar disconnected)
Front/rear bumper to ground (in): 203/4/25
*Approach/departure angle (deg): 54/42
*Measured in a direct line from the tires, not including rear trailer hitch
The kit includes a beefy new track bar drop bracket, and it mounts in the factory track-ba
The new coil spring rate is 10 lb/in greater than stock. Rough Country says this is to hel
Rough Country's Performance 2.2-series shocks have a 2.2-inch-diameter body to optimize oi
In place of the factory track bar is Rough Country's unit made from 1-inch-diameter, 0.250
A nice and beneficial touch to the kit is this transfer-case skidplate. It's held in place
We also installed Rough Country's optional steering stabilizer kit. This kit bolts directl
Front sway bar disconnects are also included with the kit. They simply mount to the sway-b
Lifting the rear of the XJ was easy. The first step was to remove the factory shocks, U-bo
The factory shackles were transferred to the new spring packs. The new spring packs' rate
In virtually no time, the new springs, shocks, and brake lines were installed. Through the
Rough Country Suspension
1400 Morgan Road