I have a 1990 buick riviera and the back of the car is up high I mean it look like

[Kevin B]

my car is a drag racing car? the front is about the right hight. How can I lower the back down like it should be?

 

[Cyberdyne Industries]

Sounds like you have a air ride shock system. Its possible that the height sensor is faulty. That or the bleed off portion of the system could be blocked up

 

[garyaborden]

Check and see if it has auto air shocks. If it does they have gone bad.

 

[xeliphias]

are all 4 tires the same size?
if so check your shocks