My brother has 1982 z28 and we noticed it was possi, i didnt think the z28 came stock with possi in 82? 10 bolt rear, what gear ratio? Thanks guys.

 

Not enough info to make even a guess. RPO G80 is the OPTION code for a LIMITED SLIP rear.

 

The stock 10 bolt rear gears is all i need to know.

 

my stock 82 ta has posi, 10 bolt 2.73 ratio.

 

Thanks man.

 

The only way to know for sure is to take off the diff cover and count the teeth. An easy way to get close is to jack up the rear put the trans in neutral spin the tire one complete turn and see how many times the drive shaft turns.