I got my used WD 3 blade SAE-2 triangle-shaped hub today - No instructions except 120 torque written on side of it. This is not the Rotax pattern. This looks like it was made to go on 6 bosses, but my drive adapter is flat, except for center boss - just tapped for 3/8 (I think) bolts - Can anyone tell me the correct way to mount this, or where can I get the bosses / spacers to fit it? Would the inserts for wood props work? Anyone have a copy of factory instructions they could copy for me? Thanks, ED in MO P.S. My Reductions EA-81 was bought from a guy in Canada who had a WD prop on it - but he kept the prop. ED