Moroso 47520 Suspension Spring Kit, Drag, Rear, 1670-1730 lb Rear End Weight, Steel, Black Powder Coat, GM G-Body, Pair

• Computer designed rear springs engineered to compress at a controlled rate when car is launched for optimum "squat"
• Right-side spring is stronger than the left, allowing the car to lift evenly upon launch for balanced weight transfer and more consistent 60-foot times
• CNC-wound from high-strength chrome silicon wire to maintain accurate spring rate and to handle the abuse of hard launches
• Replaces stock OEM springs with no modifications required
• Track proven by professional racers for optimum performance
• Two per package with black painted finish

Most towns have a public scale that you can use to weigh your car. If there isn t a public scale in your town, check with your local race track or truck stop.

In order to get the required weights for spring selection you must weigh your car in three different segments. Before weighing the vehicle be sure that it is race ready (driver on board, fuel tank filled, correct amount of ballast added). Roll the car onto the scale so that only the front tires are centered on the scale and record the scale reading. This is your front end weight. Next, roll the entire car onto the scale making sure that it is centered on the scale pad and again record the scale reading. This is your total weight. Finally, roll the car off the scale so that only the rear tires are centered on the scale pad and note the scale reading. This is your rear body weight. Now that you have all the necessary numbers you can determine which spring is correct for your application.

Emissions Warning
Products sold on this website may not be legal for use on public roads or highways due to Environmental Protection Agency (EPA) restrictions or California Air Resources Board (CARB) emissions regulations. Federal and State regulations may restrict Product installation to pre-emissions regulation (Model Year 1974 or earlier) or to competition/racing vehicles used exclusively in
1) events organized by recognized bodies, authorizing permits for participating drivers.
2) racing event qualification, and3) practice associated with events.
Installation of such products, including driving racing vehicles to and from the track, may be considered illegal “tampering ” or as “defeat device”, and may result in federal and state penalties. It is the purchaser’s responsibility to ensure compliance with all applicable emissions laws, including California’s stricter standards.

Proposition 65 Warning:
This product may contain chemicals known to the state of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.