A spring compressor will allow you to safely remove the coil springs from your vehicle in the event you need to change them. Attempting to replace the coil springs without using a spring compressor is very dangerous and should never be attempted. If you don't want to purchase your own spring compressors, you can rent them.
Local Tool Rental Stores
Many local total rental stores rent spring compressors for use by the hour or by the day. You can find tool rental stores in your local Yellow Pages, and then call the prospective stores to make sure they have spring compressors available. However, when you go to the rental store to rent the spring compressors, always check the compressor and make sure that it works. Spring compressors rented by tool rental stores are often misused and may not adequately protect you when you try to remove the coil springs from your vehicle.
Major Auto Parts Stores
In addition to local to rental stores, you can also visit major auto parts stores like AutoZone, O'Reilly and Schucks to rent spring compressors. In fact, many people choose to rent spring compressors from an auto parts store rather than a tool rental store because the sales staff at the auto parts store usually is more knowledgeable about the spring compressor and does a better job of insuring that the tool is returned in good working condition before it is rented again. To avoid visiting auto parts stores that may not have a spring compressor to rent, you should find the store's number in your local directory and call ahead and make sure to reserve one if they have the tool available.