The is a front differential for a 911 964 C4.... fits 1989-1994 cars This unit has less than 10k on it.....it is LIKE NEW...still has protective cosmoline on it. This part is ridiculously expensive but my price is ridiculously low...the price of just the case is more than what I am asking for the whole plug and play unit If you have a C4, this is a must have for your parts shelf... Price is ridiculously low....