I had two of these seats, just sold one and have one left. I got thru the GW Little catalog. The straps were way too wide, the buckle is a heavy metal 2'x3 1/2'. The dogs kept hanging themselves by jumping out. I have the harnesses that protect the sternum. I'll give you the site to a better car seat, and the harnesses.
http://www.gwlittle.com/SearchResult...033ords=202215
http://www.gwlittle.com/SearchResult...eywords=204572