BUICK 1234376 1971-1972; SKYLARK SPORTWAGON GRAN SPORT & LESABRE - WITHOUT POSI., 1971-1972; LESABRE CENTURION ELECTRA ESTATE WAGON & RIVIERA - WITH POSI., 1973-1974; CENTURY REGAL & GRAN SPORT - WITH POSI & "O" CODE AXLE, 1973-1974; CENTURY REGAL & GRAN SPORT - WITH C-G-K-W CODE AXLE, 1973-1974; CENTURY REGAL & GRAN SPORT - WITH B-O-P AXLE - EXCEPT WAGONS - WITHOUT POSI., 1973; CENTURION - WITH B-C-G-K-O-W AXLE - WITHOUT POSI., 1973-1974; LESABRE & ESTATE WAGON - WITH B-C-G-K-O-W AXLE - WITHOUT POSI., 1973-1974; ESTATE WAGON & POLICE PACKAGE - WITH POSI., 1973-1975; APOLLO - WITH 8.5 RING GEAR, 1975; SKYLARK - WITH 8.5 RING GEAR, 1975; LESABRE ELECTRA ESTATE WAGON & RIVIERA - WITH "O" CODE AXLE & 09 3/8 RING GEAR, 1975; CENTURY REGAL ESTATE WAGON & LESABRE - WITH 8.5 RING GEAR - WITHOUT POSI., 1976-1977; CENTURY & REGAL - WITH 8.5 RING GEAR, 1976-1978; CENTURY REGAL LESABRE ESTATE WAGON ELECTRA & SKYLARK - WITH 8.5 RING GEAR & C-G-K-B-O CODE AXLE, 1976-1978; LESABRE & ESTATE WAGON - WITH 8.5 RING GEAR, 1977-1978; RIVIERA ELECTRA & SKYLARK - WITH 8.5 RING GEAR, 1979; SKYLARK - WITH 8.5 RING GEAR, 1979-1980; LESABRE ESTATE WAGON & ELECTRA - WITH 8.5 RING GEAR SHAFT; DIFFERENTIAL SIDE PINION (#1255804-#14006401)