So i have a 1972 Cutlass S I've been putting together for the last 2 years .I had the front seat reupholstered and when I went to pick it up their wasn't any pass through holes for the seatbelts. The lady told me she copied exactly the way it was when I brought her the seat. I wonder if someone could send a picture of the seat folded forward showing the access to the seatbelts. This is a bench that each side folds forward to access the back seat. A picture would be a great help. Thanks

 

Just a guess but you sure they don't just go between upper and lower sections?

 

Pretty sure. I traded an old seat out of a parts car I had an the seatbelts came through the seat and now I need to look at it and don't have it.

 

Hope this helps. Here is my 72 Cutlass S all original interior. For reference to make sure the seat matches yours and then you can see under each side is where the seatbelts come through the plastic retainers.

 

That is absolutely perfect. It's exactly what I needed. Thanks so much.

 

If you turn the seat over you will see there is metal bracket for the belt to go thru I think. The plastic insert sits down in it.

HTH