Tested with factory dampers.

Fitment:
Ford Mustang Base 1979
Ford Mustang Base 1980
Ford Mustang Base 1981
Ford Mustang Base 1999
Ford Mustang Base 2000
Ford Mustang Base 2001
Ford Mustang Base 2002
Ford Mustang Base 2003
Ford Mustang Base 2004
Ford Mustang Cobra 1981
Ford Mustang Ghia 1979
Ford Mustang Ghia 1980
Ford Mustang Ghia 1981
Ford Mustang GL 1982
Ford Mustang GL 1983
Ford Mustang GLX 1982
Ford Mustang GLX 1983
Ford Mustang GT 1982
Ford Mustang GT 1983
Ford Mustang GT 1984
Ford Mustang GT 1985
Ford Mustang GT 1986
Ford Mustang GT 1987
Ford Mustang GT 1988
Ford Mustang GT 1989
Ford Mustang GT 1990
Ford Mustang GT 1991
Ford Mustang GT 1992
Ford Mustang GT 1993
Ford Mustang GT 1994
Ford Mustang GT 1995
Ford Mustang GT 1996
Ford Mustang GT 1997
Ford Mustang GT 1998
Ford Mustang GT 1999
Ford Mustang GT 2000
Ford Mustang GT 2001
Ford Mustang GT 2002
Ford Mustang GT 2003
Ford Mustang GT 2004
Ford Mustang GT-350 20th Anniversary 1984
Ford Mustang L 1982
Ford Mustang L 1983
Ford Mustang L 1984
Ford Mustang LX 1984
Ford Mustang LX 1985
Ford Mustang LX 1986
Ford Mustang LX 1987
Ford Mustang LX 1988
Ford Mustang LX 1989
Ford Mustang LX 1990
Ford Mustang LX 1991
Ford Mustang LX 1992
Ford Mustang LX 1993
Ford Mustang Mach 1 2003
Ford Mustang Mach 1 2004
Ford Mustang SVT Cobra 1993
Ford Mustang SVT Cobra R 1993
Ford Mustang Turbo GT 1983
Mercury Capri 5.0 1986
Mercury Capri Base 1979
Mercury Capri Base 1980
Mercury Capri Base 1981
Mercury Capri Base 1982
Mercury Capri Black Magic 1982
Mercury Capri Ghia 1979
Mercury Capri Ghia 1980
Mercury Capri GS 1981
Mercury Capri GS 1982
Mercury Capri L 1982
Mercury Capri RS 1982
Mercury Capri RS 1983
Mercury Capri RS 1984
Mercury Capri RS 1985