Steve, The fenders are wider, & bulkier, but not taller. The steps, & step skirts make up the difference. Here's a comparison, of the fenders, steps, & step skirts, http://rides.webshots.com/photo/1115995249052570246OMiErm , & http://rides.webshots.com/photo/1115995760052570246JnjCKb . The step skirts, on the GMC 350, & Chevy COE's, have a crease, but the 450, & 470 step skirt, does not.The reproduction fender rubber, would work on the 450, & 470 COE's, but the reproduction step rbber, is too small.

Spanky Hardy
Collector Of Fine Old G.M. COE Trucks & Antique Holmes Wreckers

1948 Chevrolet 5700 COE Holmes HD W35 Wrecker
In the Stovebolt Gallery
More pictures on Photobucket

1950 GMC 250 1-Ton
In the Stovebolt Gallery