My 4WD Accessories Direct tray is tough and doesnt rattle. I bought the heavy duty version and am happy with it.
The drop sides are strong and stiff enough to run heavy duty rachet straps tightly over them and they dont buckle or bend.
2 negatives for the tray
.....too many tek screws instead of bolts & nuts (specify to have bolts used instead of Tek screws).
.....the outer skin on the drop sides can be dented lifting in tool boxes etc and not getting over the top properly. I now have two dents about 20c piece size from that sort of thing....takes a fair whack though.
Price was decent considering the toughness of the alloy tray.
ph 3808 9998
www.oz4x4direct.com
http://oz4x4direct.com.au/product-description.php?id=24 the tray i bought.