I want to know if it is possible to switch the front drum brakes from 4 bolt to 5 bolt with only changing the drum? Do I have to change anything else? Is there a company that makes the drums without any holes?
The drum is not what determines your bolt pattern. It is the hubs fault. The drum only follows suit. http://www.1bad6t.com/Maverick/repair/diagrams/untitled001.gif
What do you mean by the hub? Can it be split apart? I want to keep everything the same. I don't want to change the back plate or the spindle. I just want to change it to a 5 lug wheel.
The hub and drum can be separated, yes. If you search for 5 lug conversion, etc; you should be able to find out a bunch of info. I am not 100% on the conversion, as I have never done it. You may be able to get away with simply replacing the hub and drum assembly with the 5-lug version. I am not sure if the brakes or spindles are the same. I am sure someone can chime in with first hand experience.