RPO Code Description Ratio G11 Transaxle Final Drive (Ratio) 2.56 G44 Axle Rear (Ratio) 3.07 G72 Axle Rear (Ratio) 2.14 G75 Axle Rear (Ratio) 3.62 G76 Positraction Rear G80 Axle Positraction, Limited Slip – (We can recommend a great replacement for your G80! Call 800-510-0950)...
If you were the “younger, better educated and more dynamic demographic” and still had to have a GM “luxury” coupe, you probably worked or had family that worked for GM and you knew how to use RPO codes at your Buick or Olds dealer to sp...