the case does have the ears at the top. the casting # is 9788647. I found info in the F.A.Q.'s axles section about the 4.33 ratio only being installed in thirteen Firebirds in 67. the article says there should be a "YL" code stamp on the axle tube. does any know if this is an ink stamp or an imbossed stamp like on an engine?
Last edited by deans67; 01/14/12 01:29 AM.
