OK I have a 67 charger currently in need of rear frame rails. I have found a good pair for a decent price but they come off of a 64 b body fury. I cant seam to find a cross chart to see if they would fit. They look right but not sure if the fit is perfect or do i need to modify them so if anyone has a chart or if they know they will fit or not it would be a great help! thank you for all your help

Steve