does any one know how to disassemble and assemble seat belt buckles,'69 deluxe belts?

 

if they are the chrome buckles you can pry off the top by carefully inserting a small screw driver in the opposite end of where the male buckle clips in. That back is connected to the top of the buckle -the whole top will then slide forward and pops right off - just be careful on what you use and how you pry off the top