Wanted:1970 Buick GS 3:91 rear axle assembly These axles were stamped OZ on axle tube They look the same as any 3:42 Stamped OO /3:64 stamped ON 8.2" 10 bolt Buick rear axle. Will buy complete rear axle or just case / housing Thanks Rich 519 264 9595 rich@purestockauto.com