Sorry I posted similar post in General Tech...
I've read through this site in the past and saw great responses to help issues, so was hoping you could help me out. MY brother owns an 85 Camaro, that is how I found this site.

My 94 Grand Prix rear suspension seems to be completely frozen. There is no flex(maybe 1/4 to 1/2 in if you push down really hard), just very stiff. I'm assuming that both rear struts need changing, but it seems odd that both would go at the same time. The rear suspension got bad after driving through a really bad rain storm.

The person at the local autoparts' store mentioned that it could be the horizontal spring going bad. If so, is there a way to check?? or am I over thinking this too much and should just change the struts.
The car has 212K, but rr struts were changes approx 120K ago. I'm looking to fix the car today after work, I'm tired of bouncing all over the place when I hit a bump

thx for the help

 

http://www.grandprixforums.net/

I'm a member there. It's a great forum, someone can help you.

But to offer some input, You really shouldn't be able to compress them a considerable amount, or at least none of my cars ever have...

 

I'm surprised this hasn't been locked yet...

Anyways, if the water was rather deep, you may have gotten some in the rear shocks and that's what's making the rear end to stiff. I doubt that the water had any affect on the leaf spring (don't you just love how cheap GM got with the W-body for that short time?) or the sway bar/shock bushings. Keep in mind the shocks are hydraulic and are filled a to a certain capacity with oil. Any liquid that could get inside them (past worn seals, rust holes, etc) will make them a lot stiffer.

Probably time for new shocks and struts.