See if you can swop the runners from you escort seats to the cossie ones if not have them welded on to the cossie seats. The back ones are completly different so you need to get them retrimed i think

i was told the the above car just took the leather off the cossie seats and put it on the escort seats but if you look close that has big gaps on each side at the back

If i was you mate i would get you escort seats retrimed because the cossie ones dont tilt forward either