04sleeper said:
I have some black 93 front belts if anyone is interested.
those won't work on the 79-90 cars, the tabs on the front belts grew longer in 91. the only direct black belts that will bolt on for him with no mods are 90 belts, and the earlier 79-83 black belts, but good luck finding those in good condition.
This swap isn't as easy as it sounds, lots of little differences. the rear hatch seat isn't a bolt on either, the entire bottom mounts differently, and you have to do that in order to mount the rear shoulder/lap belt setup properly, and also have them poke through the seat bottom holes (90+ seat bottoms had holes for the belts to come through)
if you don't want to **** with all that, find some 83 black rear inner 1/4 panels, (79-83 stangs had black). the 83 units are a direct plug in, no modifying for belts. As well, 79-83 rear black lap belts are a direct bolt in, and are identical in style to your current ones. I have extra mint rear black lap belts if you need some.
read this for a full black interior conversion article, my bro wrote it from our combined experiences.
http://50stangs.com/techarticles/foxbodyinteriorguide.html
If I had to do this again, I'd get the rear 83 black 1/4 panels, or dye your originals black, use 83 rear lap belts, 90 front belts (you won't have to drill the piller now with the 83 panel, or your painted one). Then I'd take your oem rear seat in, and have it recovered by a shop in black, or black vinyl, and use 90+ front leather or tweed buckets.
