Brakebooster rebuild

[CHR73]

Hi, new member need help
I need help to rebuild 73 charger brakebooster .i but it pieces a long ago and i can remember is that spring(about 2,5cm*5cm) that vacuumplate returnspring or is it inside that plasticpart near of the pedal ? I dont know that plasticpart name but it have three metalplates in it .i dont find any explosion pics of that.anybody knows ?
thanks

that kind a http://www.yoyoparts.com/oem/12178501/wagner-5473705.html

 

[aldal]

Welcome from Minnesota. Not much help with your question but I'm sure somebody from FBBO will know what you need, a lot of talented people at this site.