Yes, always replace shocks in pairs (both fronts or both rears) to maintain balanced handling, even tire wear, and consistent braking performance. Mismatched damping can cause unpredictable vehicle behavior.

Warning signs include: excessive bouncing after bumps, nose-diving when braking, body roll in turns, uneven or cupped tire wear, fluid leaks on shock body, or over 50,000 miles of use. Off-road and towing use accelerates wear.

Turn the external knob to select from 9 damping positions. Position 1 provides the softest ride for highway comfort, while Position 9 offers maximum control for aggressive off-road or towing. Start at Position 5 and adjust based on load and terrain.

No, always adjust RS9000XL shocks when the vehicle is parked and the suspension is unloaded. This ensures accurate position selection and prevents damage to the adjustment mechanism.

Rancho suspension products are backed by a Limited Lifetime Warranty covering defects in materials and workmanship. See product documentation or contact Rancho for complete warranty terms.