When iM driving my car seems to hit really hard

When you say it hits hard, I assume you mean when you hit a bump or something in the road that the suspension seems harsh. If that is the case, then you most likely have an issue with the shock absorber.

I would suggest inspecting these and if they have fluid on them or covered in dirt like it is sticking to them, then they are leaking and need replacement.

Here is a guide that will help with this:

https://www.2carpros.com/articles/replace-shock-absorber

Below you will find the view of this that will help with replacement. The manual on these older vehicles does not have a lot of detail but basically you just need to unbolt it at the top and bottom and this will drop out.

Please let us know what questions you have and what you find. Thanks