The only thing three belts in the rear were good for is if you had three small kids.I have personally tested the back seat of my firebird and there isn't enough room for two people let alone a threesome My 68' has two sets in the rear.
David
http://FirstGenFirebird.org/show/closeup.mv?CarID=571 If i don't get this car back on the road soon i'm gonna go postal! On a quest for FGF knowledge 1968 Pontiac Firebird Convertible 1969 Oldsmobile Cutlass "S" Convertible *Sold*