Replacing the Seat Belt Guide on Drivers Seat

I have a 99 Camaro. The seat belt shoulder guide on my drivers seat snapped, and I need to replace it. Attaching the guide to the seat is a snap. The tricky part appears to be threading the seat belt through the guide. My thought was to unscrew the seatbelt where it atatches to the floor.

Does anyone know what the part number is?

Thanks!

if you haven't already purchased the part, I'd get the one for a convertible, they have a slit to slide the belt through and don't require unbolting the belt of anything like that, and they're the same price as the hardtop ones. Sorry I don't have the part number, but check with gmpartsdirect or Dal.