I am trying to put a new front frame rail in a 67 coupe. I have the old one out and trial fitting the new one when I found that it appears the new one is about 1" too short. When it is ahead as far as it needs to be it is about 1" away from the floorpan. Have any of you ran into this problem and how did you work around it? This is one the driver side and the rail is from NPD.