2003-2009 Lexus GX 470 Front Air Suspension Conversion Kit (TR1FB)

Replaced Components
The 2003-2009 Lexus GX 470 is built with the following suspension components: 2003-2009 Lexus GX 470 Electronic Shock Absorbers (x2)- 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. 2003-2009 Lexus GX 470 Rubber Air Springs (x2)- Rubber Air Springs (also known as air bags) are filled with air by an onboard compressor and hold the vehicle up. They are designed to work with the factory equipped electronic shocks. 2003-2009 Lexus GX 470 Height Sensors (x2)- a linkage located near each wheel that constantly measures the height of the vehicle. The information is reported to a suspension control module that recommends any changes in ride height (by adding or reducing air pressure in the air springs). The ride height sensor is a moving part, and like all moving parts, they will eventually wear out. 2003-2009 Lexus GX 470 Suspension Control Module- This vehicle is equipped with a suspension control module, which is the brain of the suspension system. It reads all of the signals that are being sent by the height sensors and determines if the vehicle needs to be raised or lowered. 2003-2009 Lexus GX 470 Rubber 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.

Suspension Failure Signs
A sudden loss of three to five inches of ride height in the front of the vehicle is the most obvious sign the air suspension is failing on your 2003-2009 Lexus GX 470. This will be accompanied by a rough or bouncy ride quality. Tiny cracks in the rubber air springs (from years of up and down motion and exposure to the elements,) cause air leaks in the system. The leaky air springs cause the onboard air compressor to work much longer than it was designed for and it eventually quits or can no longer pump enough air to support the weight of the vehicle. When this occurs, a suspension warning light will illuminate on the instrument cluster. Most experienced technicians will recommend replacement of all of the major components in the system to have the best success of a repair. A Strutmasters conversion kit is the most popular alternative to paying for an overhaul of the system that can cost thousands.

OEM Replacement Cost
'+ Replacement Factory Struts ($499/each) + Upper mounts & coil springs ($249/each) = TOTAL: Over $1,496 (and that doesn't even include labor for assembling the new parts)