These wheel lug studs are made of carbon steel and tested to demanding automotive industry standards to ensure strength, longevity and safety. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Ford Country Squire: 1987, 1988, 1989, 1990, 1991] - [Ford Courier: 1976, 1977, 1978, 1979, 1980, 1981, 1982] - [Ford Custom 500: 1976, 1977] - [Ford Gran Torino: 1976] - [Ford Grand Marquis: 1991] - [Ford LTD Crown Victoria: 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991] - [Ford LTD II: 1977, 1978, 1979] - [Ford LTD: 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986] - [Ford Mustang: 1987, 1988, 1989, 1990, 1991, 1992, 1993] - [Ford Ranchero: 1976, 1977, 1978, 1979] - [Ford Thunderbird: 1976, 1977, 1978, 1979, 1987, 1988] - [Ford Torino: 1976] - [Lincoln Continental: 1976, 1977, 1978, 1979, 1980, 1982, 1983, 1984, 1985, 1986, 1987] - [Lincoln Mark IV: 1976] - [Lincoln Mark V: 1977, 1978, 1979] - [Lincoln Mark VI: 1980, 1981, 1982, 1983] - [Lincoln Mark VII: 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992] - [Lincoln Town Car: 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990] - [Mercury Colony Park: 1987, 1988, 1989, 1990, 1991] - [Mercury Cougar: 1976, 1977, 1978, 1979, 1987, 1988] - [Mercury Grand Marquis: 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991] - [Mercury Marquis: 1976, 1977, 1978, 1979, 1980, 1981, 1982] - [Mercury Montego: 1976]