1984 4000S quattro 016 final drive ratio is 4:11 1985-87 4000S & CS quattro 016 final drive ratio is 3:889 -- Regards, Thompson Smith http://www.thompsonsmith.com/944.jpg 1987 Porsche 944 /1989 Audi quattro avant "S6" GMR/PCA ~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~