Balancer Crank Pulley ,3 groove, with AC & PS stamped & OE# 1375143 ,used, the 2 outer grooves are 7-3/8"dia&1 groove 5-3/4"dia ,
Fits: 1967 1968 1969 1970 Buick Skylark Gran Sport Riviera Lesabre Wildcat Electra 400 455