Does a drum to disc conversion increase or decrease wheel offset?

[Josh69]

Front, not really. Rear yes. But that was for me using Wilwood stuff. With the dozens of ways to upgrade brakes it is impossible to make a blanket statement. That is why there is not and will not be consensus on the matter.

So what you are saying is that all rotors have a different hat thickness? I would guess aluminum hats are thicker, but wouldn't the average 11-13" stock style iron rotor be about the same material thickness?

I would assume the drum on my car has to be about as thick as a 'typical' rotor hat, is it not?