1963 409 rearend
- Thread starter iggy63409
- Start date
You already know it's not a posi.........3725899 is an open case and 833 is the posi case.
L1361 is the casting date of December 13, 1961. There should be a two letter stamped code on the front pass side of the case which will indicate the axle ratio and application.
L1361 is the casting date of December 13, 1961. There should be a two letter stamped code on the front pass side of the case which will indicate the axle ratio and application.