Fits the following:
• 1966 Galaxie 427 with C6
• 1966-69 Galaxie 428 with C6
• 1968-70 Full-size Ford / Mercury 428 with C6
• 1968-69 Fairlane / Torino / Cylcone / Montego / Ranchero 428 with C6
• 1968-70 Mustang 428 with C6
• 1968-70 Cougar 428 with automatic transmission
• 1966-67 Thunderbird 427 and 428 with C6
184 teeth 12 pitch with weight outside diameter 15.55.