Spiral spacer on the lever end of the brake proportioning that the sping attaches to.
Part # 4214210053
Part # 7101353391
Diagram # 06-10-52
Part # 4243210036
Part # 7101353091
Diagram # 06-10-34
Part # 7101353061
Diagram # 06-10-41
Part # 7101353132
Diagram # 06-10-48
Part # 4044200212
Diagram # 028
Part # 4049931201
Diagram # 010
Part # 4044270121
Diagram # 050