Hello again. Ok so I might have found a crank case for the never ending f4i saga. Next question.... The casting numbers stamped on the upper case, there r 2 sets of numbers sepetates by a dash. What do ther mean and how can I match them to what I need. The first set of 5 numbers/letters match but the second set dosent. I don't know if the first is a pairing set and the next vin or serial or something. Can anyone help or have a suggestion as to where I can find out?