Z51 Performance Handling Package
 

I just found out the 89 coupe I bought has the Z51 handling package. I've done some searches but haven't found much on this option. I know it's not the adjustable suspension, can someone enlighten me? I also found out it has the GHO axle. Does someone know the ratio? Thanks

RE: Z51 Performance Handling Package
 

Well, I found out a partial answer. Z51 package sold for $575 in 1989. It includes fiberglass rear spings, cross-drilled rotors, and heavier duty suspension components. The GHO axle ratio is 3.54 apparently was only produced in early '89.

RE: Z51 Performance Handling Package
 

The Z51 package mostly had to do with the suspension,like stiffer shocks,larger disc brakes,faster-ratio steering and the highest performing tires available for the particular year.In other words,it handled the twisties better,with more control,and it stopped better,which is ALWAYS important!!