Rear End Jumping

[SHETLANDER]

when im driving along the road my car seems to jump to the left and the right a lot over the small bumps which i thought would be absorbed with the suspension.i first felt it really bad a few months ago when i had a car full of people and was coming from the airport,i went over one of those metal expansion strips and the car jamp to one side.it doesnt seem as bad when im going around a longish corner,its mainly on the straights that i feel it bad.my car is a 1994 gtst with 17 inch wheels and all the tires are good.

I was wondering if HICAS was causing my car to do this or is it something different? ive checked the suspension and it looks ok.just thought i would ask and see if its a common problem and relatively easy to fix

[fob33]

i had the same problem.found out my springs were chopped and shocks were gone.

changed to coilovers and problem went away.

[SHETLANDER]

im booked in to Centreline to get it checked out on Saturday,hopefully nothing too serious

[MBS206]

Had same issue when I first bought my car.

Had massive amounts of toe in.

Sounds like yours could be camber related.

Do you have bad un-even tyre wear (Look at your rear tyres before answering this)