REAR AXLE FIELD IDENTIFICATION Axles are manufactured by Buick Chevrolet Buffalo Chevrolet Warren Chevrolet Gear and Axle Olds mobile Pontiac and McKinnon Divisional Manufacturer code letters will be metal stamped on the axle tube adjacent to the carrier for field identification See Example Metal stamped on right front inboard side letters and numerals 1I4 high 3 outboard of can ier or are located on a metal tag attached to cover bolt Reference should be made to divisional service manuals for location on some models FIELD IDENTIFICATION TMINIMUM REQUIREMENT FOR IDENTO PLATE N K B 218 D W W BORG WARNER 1 LIMITED SLIP IDENT E EATON j G80 OPT O OLDS D FOR DAV SHIFT I N FOR NIGHT SHIFT I I RATIO CODE DAY OF YEAR AXLE BUILT MANUFACTURER IDENTITY Note 1978 models the fourth character indicates model year fifth through seventh Julian date I The eigth character shift code MANUFACTURER IDENTITY I B BUICK O OLDSMOBILE P PONTIAC M PONTIACICANADA l G CHEVROLET GEAR AND AXLE I C CHEVROLET BUFFALO K GM OF CANADA ST CATHARINES MCKINNONI W CHEVROLET WARREN MANUFACTURERS IDENTIFICATION WILL APPEAR IN THE DESCRIPTION COLUMN OF CATALOG EXAMPLE 76 A B C W GSO 488333 2 PLATE DIFF PRELOAD P M TYPE GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET I0 27