I took a "soft" grinder to it. It was pretty deep pitted. I ground most of the rust off to shiny metal, then went over it all with a drill and wire brush, now it is primed. I think it will be a good rear end for my '74 Duster. I should throw some 4.30's in it and headers on the 318 and see what she'll do … see if Jaba's stock 360 4bbl can take it down ! That would be fun! :)