Bench to Bucket???

My Dart orginally came with bench seats then racing seats were installed. Now I am putting in a set of A Body buckets and need to know the measurements to where they go.

I remember someone saying that they should be indentations on the floor where the bolt holes would be drilled out. I do have one but can't find the other unless it was already drilled but if that is the case then the seat tracks don't line up.

Can someone measure their seat holes and let me know what and where they should be?


THANKS in advance!!!