I've read that aerostars have finned drums that fit rangers with the 10'' drums, naturally I have them. I personally don't think they would make that much of a difference on cooling and brake fade. Other then the cost, it wouldn't be a tough or in-depth upgrade. It's just another easy thing I can do. I already have fresh drums. Not worried about cost or anything like that. What do you guys think though? Worth it? (Cooling)