I know your past this.
How I interpret the 69 (3-15) instruction
Axle housing flange
Paper
Backing plate
Foam
Axel bearing retainer
Nuts
No steel. Hmmm.
70 (3-30) instruction is the same as '69.
71 (3-32) instruction says
Axle housing flange
New rubber coated steel gasket (is this the culprit?)
Backing plate
Foam
Axle bearing retainer
Nuts