i called summit racing for a wilwood f/r disc kit for the 65 because they are going to have a 10% discount on everything during the week of hot august nights next week,so they couldn't find the kit # in their cataloge so they had me call to wilwood to get that and that guy wanted to know the offset of the 9" rear end and bearing size of the rear end that i'm going to use, its off a 67 with the nut on the pumpkin and i'll have it cut down to size.....would that be a small bearing ? what would be the offset ?? thanks