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.

Fitment:
1998 Ford Ranger EV
1998 Ford Ranger Splash
1998 Ford Ranger XL
1998 Ford Ranger XLT
1998 Mazda B2500 SE
1998 Mazda B2500 SX
1998 Mazda B3000 SE
1998 Mazda B3000 SX
1998 Mazda B4000 SE
1999 Ford Ranger EV
1999 Ford Ranger XL
1999 Ford Ranger XLT
1999 Mazda B2500 SE
1999 Mazda B2500 SX
1999 Mazda B2500 Troy Lee
1999 Mazda B3000 SE
1999 Mazda B3000 Troy Lee
1999 Mazda B4000 SE
2000 Ford Ranger EV
2000 Ford Ranger XL
2000 Ford Ranger XLT
2000 Mazda B2500 SE
2000 Mazda B2500 SX
2000 Mazda B3000 SE
2000 Mazda B3000 SX
2000 Mazda B3000 Troy Lee
2000 Mazda B4000 SE
2000 Mazda B4000 Troy Lee
2001 Ford Ranger Edge
2001 Ford Ranger EV
2001 Ford Ranger XL
2001 Ford Ranger XLT
2001 Mazda B2300 SE
2001 Mazda B2300 SX
2001 Mazda B2500 SE
2001 Mazda B2500 SX
2001 Mazda B3000 DS
2001 Mazda B3000 SE
2001 Mazda B4000 DS
2001 Mazda B4000 SE
2002 Ford Ranger Edge
2002 Ford Ranger EV
2002 Ford Ranger Postal
2002 Ford Ranger XL
2002 Ford Ranger XLT
2002 Mazda B2300 Base
2002 Mazda B3000 Base
2002 Mazda B3000 DS
2002 Mazda B4000 Base
2002 Mazda B4000 DS
2003 Ford Ranger Edge
2003 Ford Ranger XL
2003 Ford Ranger XLT
2003 Mazda B2300 Base
2003 Mazda B2300 SE
2003 Mazda B3000 DS
2003 Mazda B3000 SE
2003 Mazda B4000 Base
2003 Mazda B4000 DS
2003 Mazda B4000 SE
2004 Ford Ranger Edge
2004 Ford Ranger Tremor
2004 Ford Ranger XL
2004 Ford Ranger XLT
2004 Mazda B2300 Base
2004 Mazda B2300 SE
2004 Mazda B3000 DS
2004 Mazda B3000 SE
2004 Mazda B4000 Base
2004 Mazda B4000 DS
2004 Mazda B4000 SE
2005 Ford Ranger Edge
2005 Ford Ranger FX4
2005 Ford Ranger STX
2005 Ford Ranger XL
2005 Ford Ranger XLT
2005 Mazda B2300 Base
2005 Mazda B3000 Base
2005 Mazda B3000 DS
2005 Mazda B4000 Base
2005 Mazda B4000 SE
2006 Ford Ranger FX4
2006 Ford Ranger Sport
2006 Ford Ranger STX
2006 Ford Ranger XL
2006 Ford Ranger XLT
2006 Mazda B2300 Base
2006 Mazda B3000 Base
2006 Mazda B3000 DS
2006 Mazda B4000 Base
2006 Mazda B4000 SE
2007 Ford Ranger FX4
2007 Ford Ranger Sport
2007 Ford Ranger STX
2007 Ford Ranger XL
2007 Ford Ranger XLT
2007 Mazda B2300 Base
2007 Mazda B3000 Base
2007 Mazda B3000 DS
2008 Ford Ranger FX4
2008 Ford Ranger Sport
2008 Ford Ranger XL
2008 Ford Ranger XLT
2008 Mazda B2300 Base
2009 Ford Ranger FX4
2009 Ford Ranger Sport
2009 Ford Ranger XL
2009 Ford Ranger XLT
2009 Mazda B2300 Base
2010 Ford Ranger Sport
2010 Ford Ranger XL
2010 Ford Ranger XLT
2011 Ford Ranger Sport
2011 Ford Ranger XL
2011 Ford Ranger XLT