I also have a Weatherguard tool box, model #664. The problem is that my Quad is to long by about 2 inches to fit in the pickup box with it in the box. I had the box in my 96 4x4 Dodge and the same Quad fit just fine, a little snug. I have looked at other Weatherguard tool boxes but can't find one that is 18 inches deep (front to rear) I have looked on the web and stores in our area but can't find one that will work. I like the Quad in the back for winter for weight. I also ride a lot and don't want to have to remove the trailgate so that I can carry it. Appreciate any help. Have a Merry Christmas and Happy New Year.
Mike