I have a 2008 366 ac for my boy. I made a connection for on the rear rack for a plastic box on my 2008 500 ac. It fits on my sons but the 1/4 " holes dont' go all the way threw. It is welded to the rack and only one hole is open.

Is this normal for the ac 366???

 

do you have a pic because i have a 366 and i am not too sure what part you are talking about