Greetings to all. My '65 Norton Atlas vibrated one of its swingarm nuts off. I've found a replacement nut and washer, but I cannot find any reference as to the torque to which this nut should be set. Please let me know your thoughts.

Kind Regards,

Bruce

Probably no more than 40ft lbs.
The metalastic bushes eat up the inside of the frame gussetts. Possibly from being mushed into the mild steel gussetts.
You however do not want to allow the inners them to turn. They must stay clamped. and the outers move with the swing arm.