need help from the seat belt gurus
 

need some parts for my new project a 1972 formula. i am missing some of the seat belts , but not sure which ones are core . i think i know were to get some from a 71 firebird , but i think they would not be correct

does your speedometer have one, or two idiot lights on the bottom?

iirc the seat belt interlock was phased in during the 1972 model year (see the "black car" thread for that style belt) - but the early model year cars essentially used a 1971 style belt.

my car was a late 72 build date

Late '72 has the exploding belts. That said; there are parts to repair them now.
I have some 72-73 front seat retractors ( male ends) that bolt to the inner rocker if that helps .

Yes, see the Black Car thread to see the early version that were restored. By using "search this thread" feature.

But, you're looking for 72 exploding seat belts....many threads on those as well