When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
cast Oct 1963, assembled Dec 1963. Value is for a car in that range and looking for the stamping info. If the diff is original, it was not very good to start with. Bad posi, box pinion gear, 17 spline pinion yoke. If it was ever rebuilt then depending on what is inside it now would determine value.
For someone looking to build a stronger diff this would not be the base to start with.
With that said, common market price for diff cores is about $250-$300, complete with axels and cover. To someone looking for this diff value would be more, market interest less.
Note there is additional stamping on this housing, not factory, so chances are there are some changes inside