Smoothing out the ride of your Jeep Wrangler can easily be done by replacing the vehicle's shocks or related suspension components. The shocks in your Jeep's suspension help to dampen the suspension's movement. Modern day shocks are gas pressurized with materials such as nitrogen, which minimize the fluid foaming as the piston in the shock moves up and down. The internal components of your shocks can degrade overtime, leading to a rougher ride.
Take your Wrangler for a drive and perform a "bounce test" by purposely driving over bumpy parts of the road. Check to see if the vehicle bounces more than once after you hit small bumps. Get out of the Jeep and hold the bumper down, then release it, and see if the vehicle bounces more than once upon the bumper's release. If the Wrangler bounces equally at the front and rear bumpers, you may need to replace both the front struts and rear shocks to reduce roughness.
Check for body sway during a drive in your Wrangler. Look for smooth and bumpy areas in the road and check how the vehicle feels as you drive over each section. If the steering wheel shudders over the bumpy sections and the Jeep feels noticeably loose in turns, you will likely need to replace the front struts to smooth out the ride.
Look under the vehicle at your suspension components and inspect the rubber bushings that are a part of the suspension assembly. If they look worn and are cracking, they could be contributing to excessive vibration in your steering wheel. Eventually, a bushing can crack and wear out completely, rendering the suspension component -- that it's a part of -- useless.
