Prothane polyurethane rack bushings reduce unwanted steering rack deflection, for quicker steering response and more accurate control. Offset bushings raise the steering rack, to maintain proper steering geometry on lowered Mustangs and reduce bump steer. Fits these vehicles: 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 GT V8 Mustang Steeda Roush & Saleen Vehicles.