REAR AXLIE FIELD IDENTIFICATION Axles are manufactured by Buick Chevrolet Buffalo Chevrolet Warren Chevrolet Gear and Axle Oldsmobile Pontiac and McKinnon Divisional Manufacturer code letters will be metal stamped on the axle tube adjacent to the carrier for field identi fication See example Metal stamped on right front inboard side letters and 1 numerals 1 4 high 3 outboard of carrier 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 MINIMAL REQUIREMENTS FOR IDENTO PLATE F W 7 NK B 218 D W LIMITED SLIP IDENT GSO OPTION W BORG WARNER RATIO E EATON cons T 0 OLDS MANUFACTURER I IDENTITY DAY OF YEAR AXLE BUILT D DAY SHIFT N NIGHT SHIFT MANIUFACTUIRER ZIDIENTITY B BUICK M G CHEVROLET GEAR AND AXLE O OLDSMOBILE C CHEVROLET BUFFALO P PONTIAC K GM OF CANADA ST CATHERINES M PONTIAC CANADA MCKINNON W CHEVROLET WARREN MANUFACTURERS IDENTIFICATION WILL APPEAR IN THE DESCRIPTION COLUMN OF CATALOG EXAMPLE 82 A B C W GBO 488333 2 PLATE DIFF PRELOAD P M TYPE 1992 GENERAL MOTORS SERVICE PARTS OPERATIONS CADTLLAC 620 11 92 5 1 5 000