Does anyone know if the rear wheel of a Fatboy will fit on an 06 Street Bob?

 

Are the forks the same width? If yours are the same as my SG their like 6 1/2 or 6 3/4. If the width is the same, I wouldnt see why not

DOH, just saw that you said rear...hahahaha...nm about the forks then

 

Since your putting a Softail wheel on a Dyna I would make sure the rear swingarms are the same width, which I don't believe they are you may need to make some spacers to make it fit. You didn't mention the years but you may have to buy a bearing kit for the rear axle if they're different sizes. Almost anything can be made to fit anything how much do you want to spend or modify???