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Convert Your Air Suspension To A Coil Spring Suspension
End Your Air Suspension Problems Forever...

Strutmasters 1999-2004 Discovery II Air Suspension Conversion Kit Air Spring To Coil Spring Conversion Kit is the perfect solution to your air suspension problems. Designed to be very affordable, you can convert your air suspension to use standard shocks/struts and coil springs for less than the price of replacing one air strut.


  • Saves Money
  • All New Components
  • Returns Vehicle To Factory Ride Height
  • More Reliable Than Air Suspensions
  • No Modifications Required To Install
  • Easy To Install
  • Premium Eibach Springs
  • 2 Rear Eibach Springs
  • All Necessary Hardware
  • Detailed Instructions
  • None

Price Comparison

How Does Strutmasters Measure Up?

After Market Replacement Parts:

+ Air Struts ($396/strut)
+ Compressor Assembly ($720/compressor)
= TOTAL: Over $2,300 (and that doesn’t even include replacing electronic components that are known to fail such as the height sensors).

Strutmasters Conversion Kit:

+ 2 Rear Eibach Springs
+ All Necessary Hardware
+ Detailed Installation Instructions
+ Over-The-Phone Technical Support And A Limited Lifetime Warranty =

  • Our Price: $257.00!

Additional Info

Learn why Strutmasters is the best choice for your new kit.

long-icon-questionWhy Choose Strutmasters?

Why choose the Conversion Kit over replacing the air suspension system on your 1999-2004 Discovery II?

The air suspension system on the 99-04 Discovery II is made of assorted parts that must always function in sync. Strutmasters' air to non-air suspension conversion kit gets rid of this dependency for good. The kit, manufactured in the USA, includes two rear Eibach springs and all necessary mounts. Customers appreciate the detailed instructions and online installation videos that help them get the kit installed in about one hour per wheel. Strutmasters offers a Lifetime Limited Warranty on each kit, and the expertise of our ASE certified technicians throughout the purchase and repair process. The high quality of the kit, coupled with the low price, is what convinces most Discovery II owners to make the switch. Reviewing the costs of dealership direct replacement, aftermarket parts replacement, and Strutmasters' conversion kit highlights the considerable savings.

long-icon-xIs Your Suspension Failing?

How do I know if my 1999-2004 Discovery II Air Suspension is failing?

If the 1999-2004 Discovery II is unable to reach and maintain its proper ride height, it may have a failed or leaking air suspension system. Early diagnosis of a bad suspension is the key to avoiding total failure. Look for a sudden uneven height difference between different sides of the Discovery. A sagging rear end with an inflated front end is typically seen. This gives the illusion the Discovery is squatting down in the rear. There may also be a shifting lean from one side to the other. Any of these height variances can wear out the air compressor. If the air compressor has already stopped working, there may be a suspension warning light illuminated on the dashboard. When this occurs, suspension failure is advanced. The Discovery owner should get any suspension issue fixed immediately; the longer one waits, the more expensive a repair will be.

long-icon-gearVehicle Components

What kind of suspension does my 1999-2004 Discovery II have?

The 1999-2004 Discovery II is built with the following suspension components:

1999-2004 Discovery II Shock Absorbers (x4)- a metal tubing filled with gas-charged hydraulic fluid that is connected to the wheel of a vehicle in order to reduce the effects of vertical travel on a rough surface which controls the bounciness, and therefore comfort, of a vehicle.

1999-2004 Discovery II Air Struts (x4)- struts that contain an air bladder whose dampening capabilities is controlled by the suspension control module; these have two functions. They connect the wheel of a vehicle to the driving surface in order to reduce the effects of vertical travel on a rough surface which controls the bounciness, and therefore comfort, of a vehicle. They also help maintain the vehicles correct ride height, especially whenever the amount of load put onto the vehicle changes.

1999-2004 Discovery II Height Sensors (x4)- a linkage located near each wheel of a vehicle with any electronic suspension that, either mechanically or electronically, constantly measures the height of the vehicle, and reports this information back to the control module so that the computer can identify if changes in height need to be adjusted accordingly. The ride height sensor is a moving part, and like all moving parts, they will eventually wear out.

1999-2004 Discovery II Air Lines- tubes that run from a compressor (air suspension) to the air struts which carry pressurized air to the air bags components in order to adjust the height of the vehicle, respectively.

1999-2004 Discovery II Solenoids (x4)- usually L-shaped, these plastic components connect the electrical connection and lines of suspension components to the suspension control module on vehicles with active suspension. The solenoid regulates the air pressure for each air spring. Solenoids start to leak as they wear out causing the vehicle to sag or to lean. This will cause the ride height sensor to send a signal to activate the compressor in an attempt to inflate the air suspension and level out the vehicle. This excessive work load will eventually lead to total failure of the compressor.

1999-2004 Discovery II Compressor- creates/sends pressurized to active suspension components. When the air suspension starts leaking, the compressor/pump starts working harder to try to keep the system inflated. By the time air suspension leaks down completely, sitting the vehicle on its tires, the compressor will either have failed or be well on its way to full failure. Buying replacement struts and taking the time to install them only to find out the compressor still needs to be replaced can be very frustrating, time-consuming, and expensive.

1999-2004 Discovery II Dryer Assembly- used to keep moisture out of air lines and air springs in order to prevent freezing and internal cracking of these parts. Once air suspension starts leaking, moisture will build-up throughout the air system. Moisture damages the air suspension from the inside. The dryer will need to be replaced in order to eliminate the moisture and prevent any further damage.

1999-2004 Discovery II Suspension Control Module- a computer which is responsible for the operations of the air suspension system and maintaining the vehicle’s correct ride height.

1999-2004 Discovery II O-rings- Although they are the least expensive parts of the air suspension, they are responsible for maintaining the seal where all of the air lines connect. Be sure to replace the O-rings when repairing any air suspension system.

Reviews and Videos


Customer Reviews

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Name: | Location: Sparta, MO United States | SKU: LC1R0

Just Installed this kit on my 1999 Landrover Discovery II.Very easy to install (did it in my drivway) and works Excellent!! Verry Impressed and thankfull that “strutmasters” made this kit available.

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