I think they are interchangeble on birds. camaro's i believe needed to have the deluxe interior option or be a convertible due to the standard interior on a camaro not having rear armrests,thus being a wider rear seat on a camaro standard interior.
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*