I read somewhere that the 2008-2010 F450 has bigger brakes, axles, etc over the F350.

Is this true with the 2011's as well? Or are the 2011 F450 the same as the F350 but with a better turning radius?

Thanks

I had an 08 F450...everthing is bigger as you stated...brakes,axles,rear end.....motor and cab is about the only thing the same as I recall.
Not sure on the 11's

For 11'+ models Ford ditched the dana 110 axle and the 19.5 wheels and are using the F-350 axle. Not sure if the size of brakes changed too.