Z28's came with a limited slip differential. Trans Ams had posi-traction.
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.
get a posi traction rear end and swap it out.
the correct term is posi-traction which refers to the power to the differential then to the rear wheels, a posi-traction equipped vehicle provides power to both drive wheels if one of the wheels starts to slip, a non posi-traction vehicle only drives one rear wheel.
YES you can.
its a posi tract.
The 3.73 rear end in a 1998 Chevy Silverado 1500 does not automatically mean it is a posi-traction (posi) differential. Posi-traction refers to a limited-slip differential that allows both rear wheels to spin together for improved traction. You would need to confirm with the specific vehicle's build options or VIN to determine if it has a posi rear end.
Only as an option.
It was an option, you will have to check yours to know for sure if you have it.
A posi rear end (positive traction) drives both rear wheels.a posi rear end is when both rear tires spin instead of just one
Yes
jack up drive axle with vehicle in neutral and turn one tire. If the tire on opposite side turns the same direction as the one you did you have posi traction. If it turns the other direction its a diff.