The KYB Gas-a-just monotube truck shock absorber has additional performance advantages over the twin-tube design: It can instantly, automatically adjust to your performance needs and never experiences fade due to aeration. The Gas-a-just is available as an OE monotube replacement and as an OE twin-tube performance upgrade. The KYB Gas-a-just has two separate working chambers: An air-free hydraulic piston and valve area for responsiveness and control, and a second high-pressure nitrogen gas area with a floating piston that provides a comfortable ride during normal driving and adds instant performance on demand.
This Part Fits: 
 
  This Part Fits:
| Year | Make | Model | Submodel | 
|---|---|---|---|
| 1973 | Ford | M-400 | Base | 
| 1974 | Ford | M-450 | Base | 
| 1984-1989 | Toyota | 4Runner | DLX | 
| 1984-1989 | Toyota | 4Runner | SR5 | 
| 1988-1990 | Toyota | Land Cruiser | Base | 
| 1984-1995 | Toyota | Pickup | Base | 
| 1986-1987 | Toyota | Pickup | Base Turbo | 
| 1984-1995 | Toyota | Pickup | DLX | 
| 1985 | Toyota | Pickup | DLX Turbo | 
| 1984-1995 | Toyota | Pickup | SR5 | 
| 1985-1988 | Toyota | Pickup | SR5 Turbo | 
| 1995-2004 | Toyota | Tacoma | Base | 
| 1998 | Toyota | Tacoma | DLX | 
| 1998-2000 | Toyota | Tacoma | Limited | 
| 1998-2004 | Toyota | Tacoma | Pre Runner | 
| 2001-2004 | Toyota | Tacoma | S-Runner | 
| 1995-2000 | Toyota | Tacoma | SR5 |