Well the spring holds the weight of the car - the shock provides damping...

But to help with the "real" problem can you answer the following:-

Does your car have self leveling suspension?
What is the model / year of your car?
Can you assess the condition of the rubber parts on the rear suspension?
Is there any rust or accident damage?
Have you got any pictures?

__________________
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!