2000 Audi S4 Q&A
2000 Audi S4 Question: Would you replace or rebuild a rear diff with 160k miles on it?
Your guy is correct. Save money and get a good used one. Audi's usually don't have diff problems - tramies
Swapping is cheaper but what condition it the used one in? No one knows until after it's installed. Do you know how many miles are on it? GL - Hal...