G'day Norm

Yes, that was a stab in the dark smile
By engineering definition, the thread must be the same.
Reason: when you reverse the reel the driven-side remains the same.
[The sprocket is removed and placed on the other side].

Cheers
---------------
Jack

Last edited by CyberJack; 31/03/16 11:00 AM. Reason: Added clarification.