Rough Country 907S - Manual (Page 12)

Thank you for purchasing a Rough Country Suspension System.
TROUBLESHOOTING TIPS
Problem: Driveline Vibrations
Possible Solution: Check all u-joints to insure that there is no wear on the existing hardware caps. Even a new
vehicle can cause vibrations in the angle on the U-joint is changed after being run for even a short period of time.
Possible Solution: Driveline vibrations can be caused from the removal or addition of the hardtop which changes the
rear vehicle weight, and the rear height, which affects the rear drive shaft pinion angle. Rough Country adjustable
upper control arms or upper rear cam bolts, will eliminate such vibrations by adjusting / rotating the rear pinion angle
up or down as needed.
Possible Solution: The transfer case drop brackets must be installed with the 4” lift, if you do not plan to run a slip
yoke eliminator.
Problem: Your Jeep does not steer, or track correctly.
Possible Solution: If the steering is short or offset after installing the lift, the alignment shop should adjust the
linkages on the front axle to line the steering geometry back.
Possible Solution: If you are experiencing bump steer or axle float after the alignment, you will need to check the
track bar to ensure that the tie rod end is not worn or damaged. This will allow the axle to float from side to side. You
will also want to be sure that you drilled and installed the hardware for the support hole on the front track bar bracket.
If the bolt is not installed it will allow the bracket to move and give the same floating effect.
Problem: You experience “High Speed Wobble” after hitting bump at 35-40mph.
Possible Solution: “Death wobble” is usually a combination of items and typically there are is not one easy fix. We
recommend you follow these steps when trying to identify source. Start by looking for any loose movement in the
steering. Watch the tie-rod ends where they connect to the steering knuckle arms. Watch the drag link and the ends.
Watch the track bar—it should remain tight without side to side movement when dry turning. Check to make sure your
wheel bearing are in good condition by jacking up Jeep and grabbing top of the wheel and try to rock it back and
forth. Make sure your tires are balanced—we recommend they be “road force” balanced. Is your front end in
alignment? Lack of proper caster angles may be the problem. Last but not least is the steering stabilizer. A new
stabilizer will not fix the problem, but a worn out one will make the situations worse. Most aftermarket stabilizers
significantly dampen the movement that is the precursor to death wobble—control this and the severity is limited.
MAINTENANCE INFORMATION
It is the ultimate buyers responsibility to have all bolts/nuts checked for tightness after the first 500 miles and then
every 1000 miles. Wheel alignment steering system, suspension and driveline systems must be inspected by a quali-
fied professional mechanic at least every 3000 miles.