73 dodge dart head liner problem...?

Well I broke down and ordered a new head liner from stockinteriors.com. Got the head liner 10 days later and was really excited to see how it fit.

Begain by tearing out the old card board head liner, that was so brittle will not go back in. After getting the new one all in place it was about 4 inches to narrow! I took pictures and wrote the company with no response.

It seems to fit the contour of the roof line but is just not the right size.

wanted to know if anyone has delt with them before or used there products?

Thanks!