KYB KG54320 Suspension Shock Absorber - Front or Rear

KYB Gas-a-just Rear Shock for Ford and Lincoln

The KYB Gas-a-just KG54320 is a monotube suspension shock absorber built for rear applications on select Ford Expedition and Lincoln Navigator models, along with other Ford truck fitments. It uses separate gas and oil chambers for quick response, stable damping, and consistent control during normal driving and heavier-duty use.

Gas-a-just Performance Details

KYB’s Gas-a-just line is engineered for vehicles that work harder than a standard commuter setup. The monotube design can deliver up to 25% more damping performance than original equipment shocks, with high-pressure nitrogen gas that helps reduce fade from aeration and improves steering response. The KG54320 also uses a triple chrome plated piston rod to help reduce seal wear and support long service life.

• Monotube shock absorber with separate gas and oil chambers
• Up to 25% more damping performance over OE shocks
• Fade-resistant operation with instant response
• Triple chrome plated piston rod helps reduce fluid leakage risk
• Designed for Ford truck applications and heavier-duty use
• Dust cover included

Fitment and Cross Reference

Fits 1997-2002 Ford Expedition, rear. Fits 1998-2002 Lincoln Navigator, rear. Fits 1997-1998 Ford F-250, front. Fits 1997 Ford F-250 HD, front. Fits 1985-1997 Ford F-350, front. Fits 1987-1996 Ford F-250, front.

This part cross-references Monroe Shocks & Struts (e.g., 911144) for the same application.

What This Shock Helps Address

• Excessive bounce or poor body control over rough roads
• Reduced steering response from worn suspension damping
• Shock fade during towing or heavier load conditions
• Ride instability on Ford Expedition, Lincoln Navigator, and Ford truck applications
• Noise or performance loss from aging OE-style shocks

Installation Notes and Tips

Verify compressed length, extended length, and mount type before installation. This KG54320 uses E2(12X38) upper and lower mounts, with a compressed length of 13.9 inches, extended length of 22.56 inches, and stroke length of 8.66 inches. Confirm rear air-leveling equipment is excluded where noted in the fitment data, and match the shock to the correct front or rear position listed for your vehicle.

Quality Assurance

KYB designs the Gas-a-just line as a performance-oriented monotube shock absorber for truck and SUV suspension demands. The internal gas pressure, monotube construction, and corrosion-resistant piston rod are used to support consistent damping and controlled ride behavior across the listed Ford Expedition, Lincoln Navigator, and Ford truck fitments.