Using this picture as reference:
I’m using Jim’s spreadsheet of fasteners in the Library for the items in the parenthesis
• Place 353574-S wave washer (11/16NOM,0.719ID,1.000OD,0.017T,SGL WAVE) onto the small end of one 2471 bushing
• Slide the 2A188 sleeve through the above
• Place this assembly into the pedal (2455)
• Insert another 2471 bushing on the other side.
• Place the pedal with its attendant parts into the brake support bracket
• Run the 45534-S bolt (3/8-16X3.0HH,1.0THD L,9/16HEX) through the assembly
• Screw nut onto bolt (1967) and torque down.
• 1968 uses a bolt with no threads. Instead the bolt has a groove on the end and uses the 2B277 clip