please help. blue plastic guide snapped on passenger seat

 

they are available aftermarket, probably in black though.. Fusick may have, but opgi and parts place apparently do.
the original GM # for the blue guide is 9691906. (Gr.14.875) (per Jan 75 (GM/ Olds parts book)
vinyl dye/paint is probably available to match up fairly well. Both pieces are probably faded/brittle.
may want to get new seat mounts if they're cracking as well..
Good luck

 

I'm guessing one of the tabs on the guide that snaps into the seat holder has broken off? Someone on e-Bay is selling new guides in Dark Blue (among other colors).
Seat Belt Loop Guide -Blue Rectangle -GM #1708128 Fits 1973-81 GM Cars | eBay

 

thank you very much