My '79 LeMans has a full bench seat and I want to find a set of bucket seats from a GP or Monte Carlo. Would the floor already have provisions for mounting the inner tracks or is that something I will have to weld in myself. I know a lot of new cars have provisions for various options whether they come with it or not and I wonder if this is the same? I know the simple answer would be to tear out the interior and look myself, but I'm still in the planning stages of what I want to do and haven't started to tear it apart yet. If it's going to be too much to do I might just keep the bench, I've never welded before so I'm a little reluctant to do it if that's what it needs.