Based on overall condition and inner bushing diameters, we believe both sheaves we have available to be new.  Condition with the second sheave is consistent with the one shown.  Bracket bolt spacing is approximately 8 3/4 inches.  Sheave is marked B-321, and the bracket is 743-6.  The listing is for one sheave only.  

Please review the photos carefully.

While we do enable offers upon first listing, considering them is dependent on the age of the listing and the overall amount of interest it has garnered.  Having offers enabled helps us gauge that interest, and possibly leads to future deals with prospective customers.

Thanks for looking.