ask Forged if they still have some

http://www.the370z.com/parts-sale-pr...or-all-fs.html

868 Front Seat Belt :: Seat & Seat Belt :: Genuine Nissan Parts :: 370Z Parts (Z34) 2009-2010 :: Nissan Parts, NISMO and Nissan Accessories - Courtesyparts.com

or just order a new set off of courtesy parts and be done with it.

PM was sent to forged performance a few days ago, I'm still waiting for a reply. The diagram provided by courtesy parts is the same one at the dealership, and doesnt have the guide I need listed. And even if it did it is one piece with the whole seat belt, which is one hundred bucks each... and thats my employee price. I doubt any site out there can beat the price i get at my dealership.

you may have to bite the bullet! and buy a pair. The End!