I raise the rear for racing and weight distribution.
I installed the Air-Lift kit below:
On-Line Catalog
Current Vehicle: 2002 CHRYSLER PT CRUISER More Products
>Home >Load Assist Kit for Coil Springs >Air Lift 1000 Rear; Coil Spring Leveling Kit
Description: Air Lift 1000 Rear; Coil Spring Leveling Kit;
Part No: 60788
Price: $98.50
Features
Provides More Stable Ride
Improves Handling And Braking
Fits Open Coil Springs
Up to 1,000 lbs. of Leveling Capacity
Air Adjustable; Custom Tune
Reduce Roll/Sway
Tough Molded Polyurethane
One Year Limited Warranty
http://www.airliftcompany.com/al1000.htm