Not all z28s have posi, I own a 83 and I does. It have posi. But you can buy a lock and it makes it posi.
It was available RPO G80 was Posi.
Z28's came with a limited slip differential. Trans Ams had posi-traction.
If you mean "limited-slip", yes
If its a z28, then yes. The base models did not include the posi rear end
A limited slip diff, yes
find a posi out of a z28 and swap the whole axle assembly
yes, all 1979 Camaro Z28's came with a 3.73:1 posi traction rear end.
Most likely, however, it is easy to tell. Open the glove box, and on the inside of the door, you will see a white sticker with a bunch of letters, and numbers. G-80, is posi.
My RPO says my 1996 Z28 has a 273 Posi ? Is that for real ? It doesn't feel like 273....feels much more like 373 or 342 !
a 10 bolt rear posi was an option as well as ratio 3.73 was performance option
82-92 are interchangeable