The Front fenders on the 4500-5500 is the wheel well the same size as a 2500-3500? I am thinking about seeing if I can get the front fender flares that is on the 4500 for my truck. The local Dodge dealer won't have any 45-5500 trucks to look at until they get certified for them
I am looking for more room for my 22.5's for the truck in my signature. Room is tight I can't even put on front mudflaps. I am willing to cut my front fenders if I have to

 

You can install them on the 4500/5500 with little effort. My body shop is working on painting them to match the trucks.