This new reproduction harmonic balancer is compatible/replacement for 1960-61 Falcon without air conditioning 144, 170; 1962-64 Falcon 144, 170, 200; 1965-67 Falcon 170 or 200 engine; 1968-69 Falcon 170 or 200 engine with single groove; 1970 Falcon (through 12/31/69) 6-cylinder with single groove; 1962-64 Fairlane 170, 200; 1965-67 Fairlane 200 engine; 1968 Fairlane 200 engine with single groove; 1962-63 Meteor 144, 170, 200; 1960-62 Comet 144, 170 without air conditioning; 1963-64 Comet 144, 170, 200, except with 3-point, single-belt drive with air conditioning; 1965-67 Comet 200 engine without power steering; 1968 Comet 200 engine; 1971 Comet 170 or 200 engine; 1972 Comet 170 or 200 engine with a single groove; 1973-75 Comet 200 engine with single groove; 1976-77 Comet 200 engine without air conditioning; 1966-67 Bronco 170 engine; 1968-72 Bronco 170 engine with a single groove; 1973 Bronco 200 engine with a single groove; 1970-72 Maverick 170 engine with single groove; 1970 Maverick 200 engine; 1971-73 Maverick 200 engine with single groove; 1976-77 Maverick 200 engine with a single groove; 1965 Mustang 170 engine; 1965-67 Mustang 200 engine; 1968-70 Mustang 200 engine with single groove. Pulley diameter 5-29/32" with 3 holes equally spaced.