If you mean "limited-slip", yes
Yes, it could be ordered with GM's Posi-Trac as an option.
You buy a posi-trac rear differential.
my 95 is posi !!
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.
Yes
YES, both tires must be the same size on the same axle, be it posi-trac or non posi-trac. Never, ever, mix sizes on any axle.
It was available RPO G80 was Posi.
Z28's came with a limited slip differential. Trans Ams had posi-traction.
One new and one wore tire can destroy the posi Trac.
You can change the rear end of a 1988 Suzuki Samurai to Posi-trac by opening the differential and removing the existing ring and pinion gears. The Posi-trac assembly is then install and the gears put back in place.
No, it most likely does not have the posi trac
If its a z28, then yes. The base models did not include the posi rear end